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Finding the Fourth Proportional to 243,372.60, 365,058.90 and 216,934.20

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Solution

The fourth proportional to 243,372.60, 365,058.90 and 216,934.20 is: 325,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,372.60 : 365,058.90 = 216,934.20 : x
  2. Step 2: Convert to fraction form
    243,372.60/365,058.90 = 216,934.20/x
  3. Step 3: Cross multiply
    243,372.60x = 365,058.90 × 216,934.20
  4. Step 4: Simplify right side
    243,372.60x = 79,193,760,424.38
  5. Step 5: Solve for x
    x = 79,193,760,424.38/243,372.60
  6. Step 6: Final answer
    x = 325,401.30

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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.