Home / 865,393.93-1,194,240.65-478,198.56

Finding the Fourth Proportional to 865,393.93, 1,194,240.65 and 478,198.56

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Solution

The fourth proportional to 865,393.93, 1,194,240.65 and 478,198.56 is: 659,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,393.93 : 1,194,240.65 = 478,198.56 : x
  2. Step 2: Convert to fraction form
    865,393.93/1,194,240.65 = 478,198.56/x
  3. Step 3: Cross multiply
    865,393.93x = 1,194,240.65 × 478,198.56
  4. Step 4: Simplify right side
    865,393.93x = 571,084,156,732.47
  5. Step 5: Solve for x
    x = 571,084,156,732.47/865,393.93
  6. Step 6: Final answer
    x = 659,912.37

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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.