Home / 865,264.56-1,194,057.96-478,078.80

Finding the Fourth Proportional to 865,264.56, 1,194,057.96 and 478,078.80

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Solution

The fourth proportional to 865,264.56, 1,194,057.96 and 478,078.80 is: 659,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,264.56 : 1,194,057.96 = 478,078.80 : x
  2. Step 2: Convert to fraction form
    865,264.56/1,194,057.96 = 478,078.80/x
  3. Step 3: Cross multiply
    865,264.56x = 1,194,057.96 × 478,078.80
  4. Step 4: Simplify right side
    865,264.56x = 570,853,796,647.25
  5. Step 5: Solve for x
    x = 570,853,796,647.25/865,264.56
  6. Step 6: Final answer
    x = 659,744.80

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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.