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Finding the Fourth Proportional to 536,617.30, 804,925.95 and 287,785.30

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Solution

The fourth proportional to 536,617.30, 804,925.95 and 287,785.30 is: 431,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,617.30 : 804,925.95 = 287,785.30 : x
  2. Step 2: Convert to fraction form
    536,617.30/804,925.95 = 287,785.30/x
  3. Step 3: Cross multiply
    536,617.30x = 804,925.95 × 287,785.30
  4. Step 4: Simplify right side
    536,617.30x = 231,645,855,998.54
  5. Step 5: Solve for x
    x = 231,645,855,998.54/536,617.30
  6. Step 6: Final answer
    x = 431,677.95

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Similar ratio
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1.5x scale

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.