Home / 714,437.96-985,937.12-392,178.04

Finding the Fourth Proportional to 714,437.96, 985,937.12 and 392,178.04

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Solution

The fourth proportional to 714,437.96, 985,937.12 and 392,178.04 is: 541,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,437.96 : 985,937.12 = 392,178.04 : x
  2. Step 2: Convert to fraction form
    714,437.96/985,937.12 = 392,178.04/x
  3. Step 3: Cross multiply
    714,437.96x = 985,937.12 × 392,178.04
  4. Step 4: Simplify right side
    714,437.96x = 386,662,887,284.85
  5. Step 5: Solve for x
    x = 386,662,887,284.85/714,437.96
  6. Step 6: Final answer
    x = 541,212.69

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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.