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Finding the Fourth Proportional to 418,534.10, 627,801.15 and 292,562.90

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Solution

The fourth proportional to 418,534.10, 627,801.15 and 292,562.90 is: 438,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,534.10 : 627,801.15 = 292,562.90 : x
  2. Step 2: Convert to fraction form
    418,534.10/627,801.15 = 292,562.90/x
  3. Step 3: Cross multiply
    418,534.10x = 627,801.15 × 292,562.90
  4. Step 4: Simplify right side
    418,534.10x = 183,671,325,067.34
  5. Step 5: Solve for x
    x = 183,671,325,067.34/418,534.10
  6. Step 6: Final answer
    x = 438,844.35

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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.