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Finding the Fourth Proportional to 539,188.40, 744,074.85 and 297,472.92

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Solution

The fourth proportional to 539,188.40, 744,074.85 and 297,472.92 is: 410,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,188.40 : 744,074.85 = 297,472.92 : x
  2. Step 2: Convert to fraction form
    539,188.40/744,074.85 = 297,472.92/x
  3. Step 3: Cross multiply
    539,188.40x = 744,074.85 × 297,472.92
  4. Step 4: Simplify right side
    539,188.40x = 221,342,118,328.06
  5. Step 5: Solve for x
    x = 221,342,118,328.06/539,188.40
  6. Step 6: Final answer
    x = 410,509.80

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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.