Home / 714,319.02-985,759.44-392,029.92

Finding the Fourth Proportional to 714,319.02, 985,759.44 and 392,029.92

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Solution

The fourth proportional to 714,319.02, 985,759.44 and 392,029.92 is: 541,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,319.02 : 985,759.44 = 392,029.92 : x
  2. Step 2: Convert to fraction form
    714,319.02/985,759.44 = 392,029.92/x
  3. Step 3: Cross multiply
    714,319.02x = 985,759.44 × 392,029.92
  4. Step 4: Simplify right side
    714,319.02x = 386,447,194,402.45
  5. Step 5: Solve for x
    x = 386,447,194,402.45/714,319.02
  6. Step 6: Final answer
    x = 541,000.85

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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.