Home / 386,375.18-533,197.39-216,609.34

Finding the Fourth Proportional to 386,375.18, 533,197.39 and 216,609.34

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Solution

The fourth proportional to 386,375.18, 533,197.39 and 216,609.34 is: 298,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,375.18 : 533,197.39 = 216,609.34 : x
  2. Step 2: Convert to fraction form
    386,375.18/533,197.39 = 216,609.34/x
  3. Step 3: Cross multiply
    386,375.18x = 533,197.39 × 216,609.34
  4. Step 4: Simplify right side
    386,375.18x = 115,495,534,737.62
  5. Step 5: Solve for x
    x = 115,495,534,737.62/386,375.18
  6. Step 6: Final answer
    x = 298,920.69

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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.