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Finding the Fourth Proportional to 529,866.20, 794,799.30 and 471,805.40

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Solution

The fourth proportional to 529,866.20, 794,799.30 and 471,805.40 is: 707,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,866.20 : 794,799.30 = 471,805.40 : x
  2. Step 2: Convert to fraction form
    529,866.20/794,799.30 = 471,805.40/x
  3. Step 3: Cross multiply
    529,866.20x = 794,799.30 × 471,805.40
  4. Step 4: Simplify right side
    529,866.20x = 374,990,601,656.22
  5. Step 5: Solve for x
    x = 374,990,601,656.22/529,866.20
  6. Step 6: Final answer
    x = 707,708.10

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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.