Home / 861,758.19-1,189,117.46-499,179.11

Finding the Fourth Proportional to 861,758.19, 1,189,117.46 and 499,179.11

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Solution

The fourth proportional to 861,758.19, 1,189,117.46 and 499,179.11 is: 688,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,758.19 : 1,189,117.46 = 499,179.11 : x
  2. Step 2: Convert to fraction form
    861,758.19/1,189,117.46 = 499,179.11/x
  3. Step 3: Cross multiply
    861,758.19x = 1,189,117.46 × 499,179.11
  4. Step 4: Simplify right side
    861,758.19x = 593,582,590,670.62
  5. Step 5: Solve for x
    x = 593,582,590,670.62/861,758.19
  6. Step 6: Final answer
    x = 688,804.12

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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.