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Finding the Fourth Proportional to 656,874.79, 906,514.11 and 415,069.13

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Solution

The fourth proportional to 656,874.79, 906,514.11 and 415,069.13 is: 572,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,874.79 : 906,514.11 = 415,069.13 : x
  2. Step 2: Convert to fraction form
    656,874.79/906,514.11 = 415,069.13/x
  3. Step 3: Cross multiply
    656,874.79x = 906,514.11 × 415,069.13
  4. Step 4: Simplify right side
    656,874.79x = 376,266,025,236.71
  5. Step 5: Solve for x
    x = 376,266,025,236.71/656,874.79
  6. Step 6: Final answer
    x = 572,812.40

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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.