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Finding the Fourth Proportional to 489,882.60, 734,132.70 and 240,013.80

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Solution

The fourth proportional to 489,882.60, 734,132.70 and 240,013.80 is: 359,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,882.60 : 734,132.70 = 240,013.80 : x
  2. Step 2: Convert to fraction form
    489,882.60/734,132.70 = 240,013.80/x
  3. Step 3: Cross multiply
    489,882.60x = 734,132.70 × 240,013.80
  4. Step 4: Simplify right side
    489,882.60x = 176,201,979,031.26
  5. Step 5: Solve for x
    x = 176,201,979,031.26/489,882.60
  6. Step 6: Final answer
    x = 359,682.05

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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.