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Finding the Fourth Proportional to 584,438.39, 806,248.08 and 380,414.88

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Solution

The fourth proportional to 584,438.39, 806,248.08 and 380,414.88 is: 524,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,438.39 : 806,248.08 = 380,414.88 : x
  2. Step 2: Convert to fraction form
    584,438.39/806,248.08 = 380,414.88/x
  3. Step 3: Cross multiply
    584,438.39x = 806,248.08 × 380,414.88
  4. Step 4: Simplify right side
    584,438.39x = 306,708,766,603.43
  5. Step 5: Solve for x
    x = 306,708,766,603.43/584,438.39
  6. Step 6: Final answer
    x = 524,792.30

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1.5x scale

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.