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Finding the Fourth Proportional to 598,851.20, 898,276.80 and 386,274.80

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Solution

The fourth proportional to 598,851.20, 898,276.80 and 386,274.80 is: 579,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,851.20 : 898,276.80 = 386,274.80 : x
  2. Step 2: Convert to fraction form
    598,851.20/898,276.80 = 386,274.80/x
  3. Step 3: Cross multiply
    598,851.20x = 898,276.80 × 386,274.80
  4. Step 4: Simplify right side
    598,851.20x = 346,981,691,264.64
  5. Step 5: Solve for x
    x = 346,981,691,264.64/598,851.20
  6. Step 6: Final answer
    x = 579,412.20

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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.