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Finding the Fourth Proportional to 677,147.91, 934,458.14 and 371,218.72

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Solution

The fourth proportional to 677,147.91, 934,458.14 and 371,218.72 is: 512,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,147.91 : 934,458.14 = 371,218.72 : x
  2. Step 2: Convert to fraction form
    677,147.91/934,458.14 = 371,218.72/x
  3. Step 3: Cross multiply
    677,147.91x = 934,458.14 × 371,218.72
  4. Step 4: Simplify right side
    677,147.91x = 346,888,354,624.38
  5. Step 5: Solve for x
    x = 346,888,354,624.38/677,147.91
  6. Step 6: Final answer
    x = 512,278.56

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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.