Home / 719,015.54-992,262.20-396,746.39

Finding the Fourth Proportional to 719,015.54, 992,262.20 and 396,746.39

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Solution

The fourth proportional to 719,015.54, 992,262.20 and 396,746.39 is: 547,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,015.54 : 992,262.20 = 396,746.39 : x
  2. Step 2: Convert to fraction form
    719,015.54/992,262.20 = 396,746.39/x
  3. Step 3: Cross multiply
    719,015.54x = 992,262.20 × 396,746.39
  4. Step 4: Simplify right side
    719,015.54x = 393,676,449,255.98
  5. Step 5: Solve for x
    x = 393,676,449,255.98/719,015.54
  6. Step 6: Final answer
    x = 547,521.48

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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.