Home / 826,987.56-1,141,177.86-469,291.56

Finding the Fourth Proportional to 826,987.56, 1,141,177.86 and 469,291.56

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Solution

The fourth proportional to 826,987.56, 1,141,177.86 and 469,291.56 is: 647,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,987.56 : 1,141,177.86 = 469,291.56 : x
  2. Step 2: Convert to fraction form
    826,987.56/1,141,177.86 = 469,291.56/x
  3. Step 3: Cross multiply
    826,987.56x = 1,141,177.86 × 469,291.56
  4. Step 4: Simplify right side
    826,987.56x = 535,545,138,156.86
  5. Step 5: Solve for x
    x = 535,545,138,156.86/826,987.56
  6. Step 6: Final answer
    x = 647,585.48

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1.5x scale

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.