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Finding the Fourth Proportional to 652,840.16, 978,340.92 and 519,127.04

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Solution

The fourth proportional to 652,840.16, 978,340.92 and 519,127.04 is: 777,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,840.16 : 978,340.92 = 519,127.04 : x
  2. Step 2: Convert to fraction form
    652,840.16/978,340.92 = 519,127.04/x
  3. Step 3: Cross multiply
    652,840.16x = 978,340.92 × 519,127.04
  4. Step 4: Simplify right side
    652,840.16x = 507,883,225,910.48
  5. Step 5: Solve for x
    x = 507,883,225,910.48/652,840.16
  6. Step 6: Final answer
    x = 777,959.53

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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.