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Finding the Fourth Proportional to 386,248.74, 579,404.61 and 194,024.30

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Solution

The fourth proportional to 386,248.74, 579,404.61 and 194,024.30 is: 291,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,248.74 : 579,404.61 = 194,024.30 : x
  2. Step 2: Convert to fraction form
    386,248.74/579,404.61 = 194,024.30/x
  3. Step 3: Cross multiply
    386,248.74x = 579,404.61 × 194,024.30
  4. Step 4: Simplify right side
    386,248.74x = 112,418,570,975.00
  5. Step 5: Solve for x
    x = 112,418,570,975.00/386,248.74
  6. Step 6: Final answer
    x = 291,052.27

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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.