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Finding the Fourth Proportional to 680,387.82, 1,020,591.45 and 237,155.82

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Solution

The fourth proportional to 680,387.82, 1,020,591.45 and 237,155.82 is: 355,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,387.82 : 1,020,591.45 = 237,155.82 : x
  2. Step 2: Convert to fraction form
    680,387.82/1,020,591.45 = 237,155.82/x
  3. Step 3: Cross multiply
    680,387.82x = 1,020,591.45 × 237,155.82
  4. Step 4: Simplify right side
    680,387.82x = 242,039,202,209.74
  5. Step 5: Solve for x
    x = 242,039,202,209.74/680,387.82
  6. Step 6: Final answer
    x = 355,737.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.