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Finding the Fourth Proportional to 710,059.20, 1,063,339.20 and 472,113.60

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Solution

The fourth proportional to 710,059.20, 1,063,339.20 and 472,113.60 is: 707,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,059.20 : 1,063,339.20 = 472,113.60 : x
  2. Step 2: Convert to fraction form
    710,059.20/1,063,339.20 = 472,113.60/x
  3. Step 3: Cross multiply
    710,059.20x = 1,063,339.20 × 472,113.60
  4. Step 4: Simplify right side
    710,059.20x = 502,016,897,733.12
  5. Step 5: Solve for x
    x = 502,016,897,733.12/710,059.20
  6. Step 6: Final answer
    x = 707,007.10

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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.