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Finding the Fourth Proportional to 585,020.40, 876,218.40 and 480,044.40

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Solution

The fourth proportional to 585,020.40, 876,218.40 and 480,044.40 is: 718,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,020.40 : 876,218.40 = 480,044.40 : x
  2. Step 2: Convert to fraction form
    585,020.40/876,218.40 = 480,044.40/x
  3. Step 3: Cross multiply
    585,020.40x = 876,218.40 × 480,044.40
  4. Step 4: Simplify right side
    585,020.40x = 420,623,736,096.96
  5. Step 5: Solve for x
    x = 420,623,736,096.96/585,020.40
  6. Step 6: Final answer
    x = 718,989.86

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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.