Home / 684,529.92-944,272.08-398,018.32

Finding the Fourth Proportional to 684,529.92, 944,272.08 and 398,018.32

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Solution

The fourth proportional to 684,529.92, 944,272.08 and 398,018.32 is: 549,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,529.92 : 944,272.08 = 398,018.32 : x
  2. Step 2: Convert to fraction form
    684,529.92/944,272.08 = 398,018.32/x
  3. Step 3: Cross multiply
    684,529.92x = 944,272.08 × 398,018.32
  4. Step 4: Simplify right side
    684,529.92x = 375,837,586,904.51
  5. Step 5: Solve for x
    x = 375,837,586,904.51/684,529.92
  6. Step 6: Final answer
    x = 549,044.79

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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.