Home / 668,031.40-1,002,047.10-439,708.60

Finding the Fourth Proportional to 668,031.40, 1,002,047.10 and 439,708.60

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Solution

The fourth proportional to 668,031.40, 1,002,047.10 and 439,708.60 is: 659,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,031.40 : 1,002,047.10 = 439,708.60 : x
  2. Step 2: Convert to fraction form
    668,031.40/1,002,047.10 = 439,708.60/x
  3. Step 3: Cross multiply
    668,031.40x = 1,002,047.10 × 439,708.60
  4. Step 4: Simplify right side
    668,031.40x = 440,608,727,475.06
  5. Step 5: Solve for x
    x = 440,608,727,475.06/668,031.40
  6. Step 6: Final answer
    x = 659,562.90

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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.