Home / 861,886.46-1,292,829.69-440,932.70

Finding the Fourth Proportional to 861,886.46, 1,292,829.69 and 440,932.70

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Solution

The fourth proportional to 861,886.46, 1,292,829.69 and 440,932.70 is: 661,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,886.46 : 1,292,829.69 = 440,932.70 : x
  2. Step 2: Convert to fraction form
    861,886.46/1,292,829.69 = 440,932.70/x
  3. Step 3: Cross multiply
    861,886.46x = 1,292,829.69 × 440,932.70
  4. Step 4: Simplify right side
    861,886.46x = 570,050,885,851.86
  5. Step 5: Solve for x
    x = 570,050,885,851.86/861,886.46
  6. Step 6: Final answer
    x = 661,399.05

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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.