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Finding the Fourth Proportional to 635,556.38, 876,854.34 and 359,876.69

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Solution

The fourth proportional to 635,556.38, 876,854.34 and 359,876.69 is: 496,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,556.38 : 876,854.34 = 359,876.69 : x
  2. Step 2: Convert to fraction form
    635,556.38/876,854.34 = 359,876.69/x
  3. Step 3: Cross multiply
    635,556.38x = 876,854.34 × 359,876.69
  4. Step 4: Simplify right side
    635,556.38x = 315,559,437,491.34
  5. Step 5: Solve for x
    x = 315,559,437,491.34/635,556.38
  6. Step 6: Final answer
    x = 496,508.96

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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.