Home / 716,034.88-988,144.16-393,724.48

Finding the Fourth Proportional to 716,034.88, 988,144.16 and 393,724.48

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Solution

The fourth proportional to 716,034.88, 988,144.16 and 393,724.48 is: 543,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,034.88 : 988,144.16 = 393,724.48 : x
  2. Step 2: Convert to fraction form
    716,034.88/988,144.16 = 393,724.48/x
  3. Step 3: Cross multiply
    716,034.88x = 988,144.16 × 393,724.48
  4. Step 4: Simplify right side
    716,034.88x = 389,056,545,561.04
  5. Step 5: Solve for x
    x = 389,056,545,561.04/716,034.88
  6. Step 6: Final answer
    x = 543,348.59

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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.