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Finding the Fourth Proportional to 539,717.82, 744,876.18 and 313,363.32

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Solution

The fourth proportional to 539,717.82, 744,876.18 and 313,363.32 is: 432,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,717.82 : 744,876.18 = 313,363.32 : x
  2. Step 2: Convert to fraction form
    539,717.82/744,876.18 = 313,363.32/x
  3. Step 3: Cross multiply
    539,717.82x = 744,876.18 × 313,363.32
  4. Step 4: Simplify right side
    539,717.82x = 233,416,872,753.72
  5. Step 5: Solve for x
    x = 233,416,872,753.72/539,717.82
  6. Step 6: Final answer
    x = 432,479.46

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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.