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Finding the Fourth Proportional to 624,934.78, 862,411.11 and 338,454.88

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Solution

The fourth proportional to 624,934.78, 862,411.11 and 338,454.88 is: 467,068.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,934.78 : 862,411.11 = 338,454.88 : x
  2. Step 2: Convert to fraction form
    624,934.78/862,411.11 = 338,454.88/x
  3. Step 3: Cross multiply
    624,934.78x = 862,411.11 × 338,454.88
  4. Step 4: Simplify right side
    624,934.78x = 291,887,248,745.72
  5. Step 5: Solve for x
    x = 291,887,248,745.72/624,934.78
  6. Step 6: Final answer
    x = 467,068.34

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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.