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Finding the Fourth Proportional to 440,895.76, 607,872.76 and 285,572.92

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Solution

The fourth proportional to 440,895.76, 607,872.76 and 285,572.92 is: 393,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,895.76 : 607,872.76 = 285,572.92 : x
  2. Step 2: Convert to fraction form
    440,895.76/607,872.76 = 285,572.92/x
  3. Step 3: Cross multiply
    440,895.76x = 607,872.76 × 285,572.92
  4. Step 4: Simplify right side
    440,895.76x = 173,591,999,061.66
  5. Step 5: Solve for x
    x = 173,591,999,061.66/440,895.76
  6. Step 6: Final answer
    x = 393,725.72

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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.