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Finding the Fourth Proportional to 714,349.37, 985,862.61 and 392,114.04

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Solution

The fourth proportional to 714,349.37, 985,862.61 and 392,114.04 is: 541,150.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,349.37 : 985,862.61 = 392,114.04 : x
  2. Step 2: Convert to fraction form
    714,349.37/985,862.61 = 392,114.04/x
  3. Step 3: Cross multiply
    714,349.37x = 985,862.61 × 392,114.04
  4. Step 4: Simplify right side
    714,349.37x = 386,570,570,892.04
  5. Step 5: Solve for x
    x = 386,570,570,892.04/714,349.37
  6. Step 6: Final answer
    x = 541,150.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.