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Finding the Fourth Proportional to 588,047.90, 880,905.45 and 338,438.30

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Solution

The fourth proportional to 588,047.90, 880,905.45 and 338,438.30 is: 506,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,047.90 : 880,905.45 = 338,438.30 : x
  2. Step 2: Convert to fraction form
    588,047.90/880,905.45 = 338,438.30/x
  3. Step 3: Cross multiply
    588,047.90x = 880,905.45 × 338,438.30
  4. Step 4: Simplify right side
    588,047.90x = 298,132,142,958.74
  5. Step 5: Solve for x
    x = 298,132,142,958.74/588,047.90
  6. Step 6: Final answer
    x = 506,986.15

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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.