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Finding the Fourth Proportional to 418,873.53, 623,572.44 and 416,382.38

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Solution

The fourth proportional to 418,873.53, 623,572.44 and 416,382.38 is: 619,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,873.53 : 623,572.44 = 416,382.38 : x
  2. Step 2: Convert to fraction form
    418,873.53/623,572.44 = 416,382.38/x
  3. Step 3: Cross multiply
    418,873.53x = 623,572.44 × 416,382.38
  4. Step 4: Simplify right side
    418,873.53x = 259,644,573,551.75
  5. Step 5: Solve for x
    x = 259,644,573,551.75/418,873.53
  6. Step 6: Final answer
    x = 619,863.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.