Home / 719,208.25-992,478.38-396,914.16

Finding the Fourth Proportional to 719,208.25, 992,478.38 and 396,914.16

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Solution

The fourth proportional to 719,208.25, 992,478.38 and 396,914.16 is: 547,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,208.25 : 992,478.38 = 396,914.16 : x
  2. Step 2: Convert to fraction form
    719,208.25/992,478.38 = 396,914.16/x
  3. Step 3: Cross multiply
    719,208.25x = 992,478.38 × 396,914.16
  4. Step 4: Simplify right side
    719,208.25x = 393,928,722,515.86
  5. Step 5: Solve for x
    x = 393,928,722,515.86/719,208.25
  6. Step 6: Final answer
    x = 547,725.53

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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.