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Finding the Fourth Proportional to 635,863.96, 877,489.77 and 363,930.76

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Solution

The fourth proportional to 635,863.96, 877,489.77 and 363,930.76 is: 502,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,863.96 : 877,489.77 = 363,930.76 : x
  2. Step 2: Convert to fraction form
    635,863.96/877,489.77 = 363,930.76/x
  3. Step 3: Cross multiply
    635,863.96x = 877,489.77 × 363,930.76
  4. Step 4: Simplify right side
    635,863.96x = 319,345,518,888.33
  5. Step 5: Solve for x
    x = 319,345,518,888.33/635,863.96
  6. Step 6: Final answer
    x = 502,223.02

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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.