Home / 719,016.80-992,263.93-396,747.65

Finding the Fourth Proportional to 719,016.80, 992,263.93 and 396,747.65

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Solution

The fourth proportional to 719,016.80, 992,263.93 and 396,747.65 is: 547,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,016.80 : 992,263.93 = 396,747.65 : x
  2. Step 2: Convert to fraction form
    719,016.80/992,263.93 = 396,747.65/x
  3. Step 3: Cross multiply
    719,016.80x = 992,263.93 × 396,747.65
  4. Step 4: Simplify right side
    719,016.80x = 393,678,383,896.06
  5. Step 5: Solve for x
    x = 393,678,383,896.06/719,016.80
  6. Step 6: Final answer
    x = 547,523.21

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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.