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Finding the Fourth Proportional to 341,391.70, 512,087.55 and 216,822.10

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Solution

The fourth proportional to 341,391.70, 512,087.55 and 216,822.10 is: 325,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,391.70 : 512,087.55 = 216,822.10 : x
  2. Step 2: Convert to fraction form
    341,391.70/512,087.55 = 216,822.10/x
  3. Step 3: Cross multiply
    341,391.70x = 512,087.55 × 216,822.10
  4. Step 4: Simplify right side
    341,391.70x = 111,031,897,974.86
  5. Step 5: Solve for x
    x = 111,031,897,974.86/341,391.70
  6. Step 6: Final answer
    x = 325,233.15

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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.