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Finding the Fourth Proportional to 573,695.40, 860,871.15 and 396,329.70

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Solution

The fourth proportional to 573,695.40, 860,871.15 and 396,329.70 is: 594,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,695.40 : 860,871.15 = 396,329.70 : x
  2. Step 2: Convert to fraction form
    573,695.40/860,871.15 = 396,329.70/x
  3. Step 3: Cross multiply
    573,695.40x = 860,871.15 × 396,329.70
  4. Step 4: Simplify right side
    573,695.40x = 341,188,804,618.16
  5. Step 5: Solve for x
    x = 341,188,804,618.16/573,695.40
  6. Step 6: Final answer
    x = 594,721.18

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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.