Home / 865,846.06-1,194,764.08-478,609.17

Finding the Fourth Proportional to 865,846.06, 1,194,764.08 and 478,609.17

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Solution

The fourth proportional to 865,846.06, 1,194,764.08 and 478,609.17 is: 660,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,846.06 : 1,194,764.08 = 478,609.17 : x
  2. Step 2: Convert to fraction form
    865,846.06/1,194,764.08 = 478,609.17/x
  3. Step 3: Cross multiply
    865,846.06x = 1,194,764.08 × 478,609.17
  4. Step 4: Simplify right side
    865,846.06x = 571,825,049,472.39
  5. Step 5: Solve for x
    x = 571,825,049,472.39/865,846.06
  6. Step 6: Final answer
    x = 660,423.46

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Double scale
Find fourth proportional to 865,847.06, 1,194,765.46 and 478,610.17
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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.