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Finding the Fourth Proportional to 635,179.40, 876,565.12 and 359,515.34

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Solution

The fourth proportional to 635,179.40, 876,565.12 and 359,515.34 is: 496,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,179.40 : 876,565.12 = 359,515.34 : x
  2. Step 2: Convert to fraction form
    635,179.40/876,565.12 = 359,515.34/x
  3. Step 3: Cross multiply
    635,179.40x = 876,565.12 × 359,515.34
  4. Step 4: Simplify right side
    635,179.40x = 315,138,607,148.94
  5. Step 5: Solve for x
    x = 315,138,607,148.94/635,179.40
  6. Step 6: Final answer
    x = 496,141.10

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Double scale
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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.