Home / 638,947.91-881,718.45-366,824.28

Finding the Fourth Proportional to 638,947.91, 881,718.45 and 366,824.28

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Solution

The fourth proportional to 638,947.91, 881,718.45 and 366,824.28 is: 506,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,947.91 : 881,718.45 = 366,824.28 : x
  2. Step 2: Convert to fraction form
    638,947.91/881,718.45 = 366,824.28/x
  3. Step 3: Cross multiply
    638,947.91x = 881,718.45 × 366,824.28
  4. Step 4: Simplify right side
    638,947.91x = 323,435,735,583.97
  5. Step 5: Solve for x
    x = 323,435,735,583.97/638,947.91
  6. Step 6: Final answer
    x = 506,200.48

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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.