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Finding the Fourth Proportional to 589,722.60, 883,287.28 and 487,360.54

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Solution

The fourth proportional to 589,722.60, 883,287.28 and 487,360.54 is: 729,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,722.60 : 883,287.28 = 487,360.54 : x
  2. Step 2: Convert to fraction form
    589,722.60/883,287.28 = 487,360.54/x
  3. Step 3: Cross multiply
    589,722.60x = 883,287.28 × 487,360.54
  4. Step 4: Simplify right side
    589,722.60x = 430,479,365,755.93
  5. Step 5: Solve for x
    x = 430,479,365,755.93/589,722.60
  6. Step 6: Final answer
    x = 729,969.25

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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.