Home / 432,535.06-647,932.65-215,740.18

Finding the Fourth Proportional to 432,535.06, 647,932.65 and 215,740.18

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Solution

The fourth proportional to 432,535.06, 647,932.65 and 215,740.18 is: 323,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,535.06 : 647,932.65 = 215,740.18 : x
  2. Step 2: Convert to fraction form
    432,535.06/647,932.65 = 215,740.18/x
  3. Step 3: Cross multiply
    432,535.06x = 647,932.65 × 215,740.18
  4. Step 4: Simplify right side
    432,535.06x = 139,785,106,538.88
  5. Step 5: Solve for x
    x = 139,785,106,538.88/432,535.06
  6. Step 6: Final answer
    x = 323,176.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.