Home / 719,185.38-992,474.82-396,895.44

Finding the Fourth Proportional to 719,185.38, 992,474.82 and 396,895.44

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Solution

The fourth proportional to 719,185.38, 992,474.82 and 396,895.44 is: 547,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,185.38 : 992,474.82 = 396,895.44 : x
  2. Step 2: Convert to fraction form
    719,185.38/992,474.82 = 396,895.44/x
  3. Step 3: Cross multiply
    719,185.38x = 992,474.82 × 396,895.44
  4. Step 4: Simplify right side
    719,185.38x = 393,908,730,372.82
  5. Step 5: Solve for x
    x = 393,908,730,372.82/719,185.38
  6. Step 6: Final answer
    x = 547,715.15

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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.