Home / 684,407.24-944,196.71-393,949.30

Finding the Fourth Proportional to 684,407.24, 944,196.71 and 393,949.30

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Solution

The fourth proportional to 684,407.24, 944,196.71 and 393,949.30 is: 543,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,407.24 : 944,196.71 = 393,949.30 : x
  2. Step 2: Convert to fraction form
    684,407.24/944,196.71 = 393,949.30/x
  3. Step 3: Cross multiply
    684,407.24x = 944,196.71 × 393,949.30
  4. Step 4: Simplify right side
    684,407.24x = 371,965,631,591.18
  5. Step 5: Solve for x
    x = 371,965,631,591.18/684,407.24
  6. Step 6: Final answer
    x = 543,485.82

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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.