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Finding the Fourth Proportional to 539,226.72, 744,124.02 and 297,531.78

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Solution

The fourth proportional to 539,226.72, 744,124.02 and 297,531.78 is: 410,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,226.72 : 744,124.02 = 297,531.78 : x
  2. Step 2: Convert to fraction form
    539,226.72/744,124.02 = 297,531.78/x
  3. Step 3: Cross multiply
    539,226.72x = 744,124.02 × 297,531.78
  4. Step 4: Simplify right side
    539,226.72x = 221,400,544,490.84
  5. Step 5: Solve for x
    x = 221,400,544,490.84/539,226.72
  6. Step 6: Final answer
    x = 410,588.97

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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.