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Finding the Fourth Proportional to 539,359.34, 744,331.01 and 297,657.18

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Solution

The fourth proportional to 539,359.34, 744,331.01 and 297,657.18 is: 410,775.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,359.34 : 744,331.01 = 297,657.18 : x
  2. Step 2: Convert to fraction form
    539,359.34/744,331.01 = 297,657.18/x
  3. Step 3: Cross multiply
    539,359.34x = 744,331.01 × 297,657.18
  4. Step 4: Simplify right side
    539,359.34x = 221,555,467,934.87
  5. Step 5: Solve for x
    x = 221,555,467,934.87/539,359.34
  6. Step 6: Final answer
    x = 410,775.25

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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.