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Finding the Fourth Proportional to 585,086.40, 876,317.40 and 480,110.40

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Solution

The fourth proportional to 585,086.40, 876,317.40 and 480,110.40 is: 719,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,086.40 : 876,317.40 = 480,110.40 : x
  2. Step 2: Convert to fraction form
    585,086.40/876,317.40 = 480,110.40/x
  3. Step 3: Cross multiply
    585,086.40x = 876,317.40 × 480,110.40
  4. Step 4: Simplify right side
    585,086.40x = 420,729,097,440.96
  5. Step 5: Solve for x
    x = 420,729,097,440.96/585,086.40
  6. Step 6: Final answer
    x = 719,088.83

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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.