Home / 719,016.32-992,263.28-396,747.18

Finding the Fourth Proportional to 719,016.32, 992,263.28 and 396,747.18

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Solution

The fourth proportional to 719,016.32, 992,263.28 and 396,747.18 is: 547,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,016.32 : 992,263.28 = 396,747.18 : x
  2. Step 2: Convert to fraction form
    719,016.32/992,263.28 = 396,747.18/x
  3. Step 3: Cross multiply
    719,016.32x = 992,263.28 × 396,747.18
  4. Step 4: Simplify right side
    719,016.32x = 393,677,656,173.82
  5. Step 5: Solve for x
    x = 393,677,656,173.82/719,016.32
  6. Step 6: Final answer
    x = 547,522.56

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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.