Home / 865,356.71-1,194,204.87-478,181.03

Finding the Fourth Proportional to 865,356.71, 1,194,204.87 and 478,181.03

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Solution

The fourth proportional to 865,356.71, 1,194,204.87 and 478,181.03 is: 659,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,356.71 : 1,194,204.87 = 478,181.03 : x
  2. Step 2: Convert to fraction form
    865,356.71/1,194,204.87 = 478,181.03/x
  3. Step 3: Cross multiply
    865,356.71x = 1,194,204.87 × 478,181.03
  4. Step 4: Simplify right side
    865,356.71x = 571,046,108,796.59
  5. Step 5: Solve for x
    x = 571,046,108,796.59/865,356.71
  6. Step 6: Final answer
    x = 659,896.79

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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.