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Finding the Fourth Proportional to 6,126,752.80, 9,190,129.20 and 1,866,914.20

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Solution

The fourth proportional to 6,126,752.80, 9,190,129.20 and 1,866,914.20 is: 2,800,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,126,752.80 : 9,190,129.20 = 1,866,914.20 : x
  2. Step 2: Convert to fraction form
    6,126,752.80/9,190,129.20 = 1,866,914.20/x
  3. Step 3: Cross multiply
    6,126,752.80x = 9,190,129.20 × 1,866,914.20
  4. Step 4: Simplify right side
    6,126,752.80x = 17,157,182,703,314.64
  5. Step 5: Solve for x
    x = 17,157,182,703,314.64/6,126,752.80
  6. Step 6: Final answer
    x = 2,800,371.30

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Double scale
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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.