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Finding the Fourth Proportional to 476,654.92, 657,781.53 and 258,862.06

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Solution

The fourth proportional to 476,654.92, 657,781.53 and 258,862.06 is: 357,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,654.92 : 657,781.53 = 258,862.06 : x
  2. Step 2: Convert to fraction form
    476,654.92/657,781.53 = 258,862.06/x
  3. Step 3: Cross multiply
    476,654.92x = 657,781.53 × 258,862.06
  4. Step 4: Simplify right side
    476,654.92x = 170,274,681,885.75
  5. Step 5: Solve for x
    x = 170,274,681,885.75/476,654.92
  6. Step 6: Final answer
    x = 357,228.42

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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.