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Finding the Fourth Proportional to 587,470.20, 881,224.46 and 279,655.40

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Solution

The fourth proportional to 587,470.20, 881,224.46 and 279,655.40 is: 419,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,470.20 : 881,224.46 = 279,655.40 : x
  2. Step 2: Convert to fraction form
    587,470.20/881,224.46 = 279,655.40/x
  3. Step 3: Cross multiply
    587,470.20x = 881,224.46 × 279,655.40
  4. Step 4: Simplify right side
    587,470.20x = 246,439,178,851.08
  5. Step 5: Solve for x
    x = 246,439,178,851.08/587,470.20
  6. Step 6: Final answer
    x = 419,492.22

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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.