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Finding the Fourth Proportional to 2,126,801.70, 3,190,202.55 and 2,126,801.70

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Solution

The fourth proportional to 2,126,801.70, 3,190,202.55 and 2,126,801.70 is: 3,190,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,801.70 : 3,190,202.55 = 2,126,801.70 : x
  2. Step 2: Convert to fraction form
    2,126,801.70/3,190,202.55 = 2,126,801.70/x
  3. Step 3: Cross multiply
    2,126,801.70x = 3,190,202.55 × 2,126,801.70
  4. Step 4: Simplify right side
    2,126,801.70x = 6,784,928,206,684.34
  5. Step 5: Solve for x
    x = 6,784,928,206,684.34/2,126,801.70
  6. Step 6: Final answer
    x = 3,190,202.55

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Half scale
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Double scale
Find fourth proportional to 2,126,802.70, 3,190,204.05 and 2,126,802.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.