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Finding the Fourth Proportional to 634,963.10, 876,249.68 and 363,036.69

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Solution

The fourth proportional to 634,963.10, 876,249.68 and 363,036.69 is: 500,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,963.10 : 876,249.68 = 363,036.69 : x
  2. Step 2: Convert to fraction form
    634,963.10/876,249.68 = 363,036.69/x
  3. Step 3: Cross multiply
    634,963.10x = 876,249.68 × 363,036.69
  4. Step 4: Simplify right side
    634,963.10x = 318,110,784,963.62
  5. Step 5: Solve for x
    x = 318,110,784,963.62/634,963.10
  6. Step 6: Final answer
    x = 500,990.98

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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.