Home / 651,388.32-898,916.13-396,739.71

Finding the Fourth Proportional to 651,388.32, 898,916.13 and 396,739.71

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Solution

The fourth proportional to 651,388.32, 898,916.13 and 396,739.71 is: 547,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,388.32 : 898,916.13 = 396,739.71 : x
  2. Step 2: Convert to fraction form
    651,388.32/898,916.13 = 396,739.71/x
  3. Step 3: Cross multiply
    651,388.32x = 898,916.13 × 396,739.71
  4. Step 4: Simplify right side
    651,388.32x = 356,635,724,730.52
  5. Step 5: Solve for x
    x = 356,635,724,730.52/651,388.32
  6. Step 6: Final answer
    x = 547,500.95

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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.