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Finding the Fourth Proportional to 695,882.88, 960,342.02 and 663,996.42

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Solution

The fourth proportional to 695,882.88, 960,342.02 and 663,996.42 is: 916,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,882.88 : 960,342.02 = 663,996.42 : x
  2. Step 2: Convert to fraction form
    695,882.88/960,342.02 = 663,996.42/x
  3. Step 3: Cross multiply
    695,882.88x = 960,342.02 × 663,996.42
  4. Step 4: Simplify right side
    695,882.88x = 637,663,659,935.59
  5. Step 5: Solve for x
    x = 637,663,659,935.59/695,882.88
  6. Step 6: Final answer
    x = 916,337.62

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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.