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Finding the Fourth Proportional to 830,066.70, 1,245,100.05 and 830,066.70

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Solution

The fourth proportional to 830,066.70, 1,245,100.05 and 830,066.70 is: 1,245,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,066.70 : 1,245,100.05 = 830,066.70 : x
  2. Step 2: Convert to fraction form
    830,066.70/1,245,100.05 = 830,066.70/x
  3. Step 3: Cross multiply
    830,066.70x = 1,245,100.05 × 830,066.70
  4. Step 4: Simplify right side
    830,066.70x = 1,033,516,089,673.34
  5. Step 5: Solve for x
    x = 1,033,516,089,673.34/830,066.70
  6. Step 6: Final answer
    x = 1,245,100.05

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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.