Home / 716,140.17-988,250.49-393,849.27

Finding the Fourth Proportional to 716,140.17, 988,250.49 and 393,849.27

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Solution

The fourth proportional to 716,140.17, 988,250.49 and 393,849.27 is: 543,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,140.17 : 988,250.49 = 393,849.27 : x
  2. Step 2: Convert to fraction form
    716,140.17/988,250.49 = 393,849.27/x
  3. Step 3: Cross multiply
    716,140.17x = 988,250.49 × 393,849.27
  4. Step 4: Simplify right side
    716,140.17x = 389,221,734,063.64
  5. Step 5: Solve for x
    x = 389,221,734,063.64/716,140.17
  6. Step 6: Final answer
    x = 543,499.37

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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.