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Finding the Fourth Proportional to 354,207.10, 488,801.48 and 193,061.64

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Solution

The fourth proportional to 354,207.10, 488,801.48 and 193,061.64 is: 266,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,207.10 : 488,801.48 = 193,061.64 : x
  2. Step 2: Convert to fraction form
    354,207.10/488,801.48 = 193,061.64/x
  3. Step 3: Cross multiply
    354,207.10x = 488,801.48 × 193,061.64
  4. Step 4: Simplify right side
    354,207.10x = 94,368,815,363.23
  5. Step 5: Solve for x
    x = 94,368,815,363.23/354,207.10
  6. Step 6: Final answer
    x = 266,422.71

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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.