Home / 719,015.38-992,261.99-396,746.24

Finding the Fourth Proportional to 719,015.38, 992,261.99 and 396,746.24

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Solution

The fourth proportional to 719,015.38, 992,261.99 and 396,746.24 is: 547,521.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,015.38 : 992,261.99 = 396,746.24 : x
  2. Step 2: Convert to fraction form
    719,015.38/992,261.99 = 396,746.24/x
  3. Step 3: Cross multiply
    719,015.38x = 992,261.99 × 396,746.24
  4. Step 4: Simplify right side
    719,015.38x = 393,676,208,542.12
  5. Step 5: Solve for x
    x = 393,676,208,542.12/719,015.38
  6. Step 6: Final answer
    x = 547,521.26

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Half scale
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Double scale
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Similar ratio
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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.