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Finding the Fourth Proportional to 635,538.72, 953,854.80 and 368,928.84

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Solution

The fourth proportional to 635,538.72, 953,854.80 and 368,928.84 is: 553,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,538.72 : 953,854.80 = 368,928.84 : x
  2. Step 2: Convert to fraction form
    635,538.72/953,854.80 = 368,928.84/x
  3. Step 3: Cross multiply
    635,538.72x = 953,854.80 × 368,928.84
  4. Step 4: Simplify right side
    635,538.72x = 351,904,544,892.43
  5. Step 5: Solve for x
    x = 351,904,544,892.43/635,538.72
  6. Step 6: Final answer
    x = 553,710.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.