Home / 861,886.96-1,292,830.44-440,933.20

Finding the Fourth Proportional to 861,886.96, 1,292,830.44 and 440,933.20

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Solution

The fourth proportional to 861,886.96, 1,292,830.44 and 440,933.20 is: 661,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,886.96 : 1,292,830.44 = 440,933.20 : x
  2. Step 2: Convert to fraction form
    861,886.96/1,292,830.44 = 440,933.20/x
  3. Step 3: Cross multiply
    861,886.96x = 1,292,830.44 × 440,933.20
  4. Step 4: Simplify right side
    861,886.96x = 570,051,862,966.61
  5. Step 5: Solve for x
    x = 570,051,862,966.61/861,886.96
  6. Step 6: Final answer
    x = 661,399.80

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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.