Home / 861,311.76-1,187,378.48-605,870.16

Finding the Fourth Proportional to 861,311.76, 1,187,378.48 and 605,870.16

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Solution

The fourth proportional to 861,311.76, 1,187,378.48 and 605,870.16 is: 835,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,311.76 : 1,187,378.48 = 605,870.16 : x
  2. Step 2: Convert to fraction form
    861,311.76/1,187,378.48 = 605,870.16/x
  3. Step 3: Cross multiply
    861,311.76x = 1,187,378.48 × 605,870.16
  4. Step 4: Simplify right side
    861,311.76x = 719,397,189,658.16
  5. Step 5: Solve for x
    x = 719,397,189,658.16/861,311.76
  6. Step 6: Final answer
    x = 835,234.38

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Double scale
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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.