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Finding the Fourth Proportional to 338,144.78, 466,639.76 and 187,241.78

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Solution

The fourth proportional to 338,144.78, 466,639.76 and 187,241.78 is: 258,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,144.78 : 466,639.76 = 187,241.78 : x
  2. Step 2: Convert to fraction form
    338,144.78/466,639.76 = 187,241.78/x
  3. Step 3: Cross multiply
    338,144.78x = 466,639.76 × 187,241.78
  4. Step 4: Simplify right side
    338,144.78x = 87,374,459,281.17
  5. Step 5: Solve for x
    x = 87,374,459,281.17/338,144.78
  6. Step 6: Final answer
    x = 258,393.64

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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.