Home / 719,025.66-992,249.19-396,738.81

Finding the Fourth Proportional to 719,025.66, 992,249.19 and 396,738.81

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Solution

The fourth proportional to 719,025.66, 992,249.19 and 396,738.81 is: 547,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,025.66 : 992,249.19 = 396,738.81 : x
  2. Step 2: Convert to fraction form
    719,025.66/992,249.19 = 396,738.81/x
  3. Step 3: Cross multiply
    719,025.66x = 992,249.19 × 396,738.81
  4. Step 4: Simplify right side
    719,025.66x = 393,663,762,864.06
  5. Step 5: Solve for x
    x = 393,663,762,864.06/719,025.66
  6. Step 6: Final answer
    x = 547,496.13

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Double scale
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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.