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Finding the Fourth Proportional to 418,896.16, 623,907.61 and 416,854.96

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Solution

The fourth proportional to 418,896.16, 623,907.61 and 416,854.96 is: 620,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,896.16 : 623,907.61 = 416,854.96 : x
  2. Step 2: Convert to fraction form
    418,896.16/623,907.61 = 416,854.96/x
  3. Step 3: Cross multiply
    418,896.16x = 623,907.61 × 416,854.96
  4. Step 4: Simplify right side
    418,896.16x = 260,078,981,553.15
  5. Step 5: Solve for x
    x = 260,078,981,553.15/418,896.16
  6. Step 6: Final answer
    x = 620,867.43

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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.