Home / 719,003.55-992,230.20-396,725.61

Finding the Fourth Proportional to 719,003.55, 992,230.20 and 396,725.61

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Solution

The fourth proportional to 719,003.55, 992,230.20 and 396,725.61 is: 547,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,003.55 : 992,230.20 = 396,725.61 : x
  2. Step 2: Convert to fraction form
    719,003.55/992,230.20 = 396,725.61/x
  3. Step 3: Cross multiply
    719,003.55x = 992,230.20 × 396,725.61
  4. Step 4: Simplify right side
    719,003.55x = 393,643,131,355.42
  5. Step 5: Solve for x
    x = 393,643,131,355.42/719,003.55
  6. Step 6: Final answer
    x = 547,484.27

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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.