Home / 684,511.92-944,247.24-398,000.32

Finding the Fourth Proportional to 684,511.92, 944,247.24 and 398,000.32

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Solution

The fourth proportional to 684,511.92, 944,247.24 and 398,000.32 is: 549,019.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,511.92 : 944,247.24 = 398,000.32 : x
  2. Step 2: Convert to fraction form
    684,511.92/944,247.24 = 398,000.32/x
  3. Step 3: Cross multiply
    684,511.92x = 944,247.24 × 398,000.32
  4. Step 4: Simplify right side
    684,511.92x = 375,810,703,679.12
  5. Step 5: Solve for x
    x = 375,810,703,679.12/684,511.92
  6. Step 6: Final answer
    x = 549,019.96

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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.