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Finding the Fourth Proportional to 872,201.10, 1,308,301.65 and 573,602.70

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Solution

The fourth proportional to 872,201.10, 1,308,301.65 and 573,602.70 is: 860,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,201.10 : 1,308,301.65 = 573,602.70 : x
  2. Step 2: Convert to fraction form
    872,201.10/1,308,301.65 = 573,602.70/x
  3. Step 3: Cross multiply
    872,201.10x = 1,308,301.65 × 573,602.70
  4. Step 4: Simplify right side
    872,201.10x = 750,445,358,854.46
  5. Step 5: Solve for x
    x = 750,445,358,854.46/872,201.10
  6. Step 6: Final answer
    x = 860,404.05

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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.