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Finding the Fourth Proportional to 579,114.40, 871,004.40 and 518,461.60

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Solution

The fourth proportional to 579,114.40, 871,004.40 and 518,461.60 is: 779,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,114.40 : 871,004.40 = 518,461.60 : x
  2. Step 2: Convert to fraction form
    579,114.40/871,004.40 = 518,461.60/x
  3. Step 3: Cross multiply
    579,114.40x = 871,004.40 × 518,461.60
  4. Step 4: Simplify right side
    579,114.40x = 451,582,334,831.04
  5. Step 5: Solve for x
    x = 451,582,334,831.04/579,114.40
  6. Step 6: Final answer
    x = 779,780.88

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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.