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Finding the Fourth Proportional to 573,909.40, 860,864.10 and 472,432.60

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Solution

The fourth proportional to 573,909.40, 860,864.10 and 472,432.60 is: 708,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,909.40 : 860,864.10 = 472,432.60 : x
  2. Step 2: Convert to fraction form
    573,909.40/860,864.10 = 472,432.60/x
  3. Step 3: Cross multiply
    573,909.40x = 860,864.10 × 472,432.60
  4. Step 4: Simplify right side
    573,909.40x = 406,700,265,009.66
  5. Step 5: Solve for x
    x = 406,700,265,009.66/573,909.40
  6. Step 6: Final answer
    x = 708,648.90

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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.