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Finding the Fourth Proportional to 634,517.24, 875,658.30 and 348,049.40

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Solution

The fourth proportional to 634,517.24, 875,658.30 and 348,049.40 is: 480,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,517.24 : 875,658.30 = 348,049.40 : x
  2. Step 2: Convert to fraction form
    634,517.24/875,658.30 = 348,049.40/x
  3. Step 3: Cross multiply
    634,517.24x = 875,658.30 × 348,049.40
  4. Step 4: Simplify right side
    634,517.24x = 304,772,345,920.02
  5. Step 5: Solve for x
    x = 304,772,345,920.02/634,517.24
  6. Step 6: Final answer
    x = 480,321.62

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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.