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Finding the Fourth Proportional to 618,080.06, 925,873.50 and 517,959.20

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Solution

The fourth proportional to 618,080.06, 925,873.50 and 517,959.20 is: 775,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,080.06 : 925,873.50 = 517,959.20 : x
  2. Step 2: Convert to fraction form
    618,080.06/925,873.50 = 517,959.20/x
  3. Step 3: Cross multiply
    618,080.06x = 925,873.50 × 517,959.20
  4. Step 4: Simplify right side
    618,080.06x = 479,564,697,361.20
  5. Step 5: Solve for x
    x = 479,564,697,361.20/618,080.06
  6. Step 6: Final answer
    x = 775,894.14

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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.