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Finding the Fourth Proportional to 322,017.68, 485,341.14 and 277,575.44

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Solution

The fourth proportional to 322,017.68, 485,341.14 and 277,575.44 is: 418,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,017.68 : 485,341.14 = 277,575.44 : x
  2. Step 2: Convert to fraction form
    322,017.68/485,341.14 = 277,575.44/x
  3. Step 3: Cross multiply
    322,017.68x = 485,341.14 × 277,575.44
  4. Step 4: Simplify right side
    322,017.68x = 134,718,781,698.95
  5. Step 5: Solve for x
    x = 134,718,781,698.95/322,017.68
  6. Step 6: Final answer
    x = 418,358.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.