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Finding the Fourth Proportional to 573,511.12, 791,449.50 and 358,773.28

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Solution

The fourth proportional to 573,511.12, 791,449.50 and 358,773.28 is: 495,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,511.12 : 791,449.50 = 358,773.28 : x
  2. Step 2: Convert to fraction form
    573,511.12/791,449.50 = 358,773.28/x
  3. Step 3: Cross multiply
    573,511.12x = 791,449.50 × 358,773.28
  4. Step 4: Simplify right side
    573,511.12x = 283,950,933,069.36
  5. Step 5: Solve for x
    x = 283,950,933,069.36/573,511.12
  6. Step 6: Final answer
    x = 495,109.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.