Home / 285,549.40-393,423.78-188,581.06

Finding the Fourth Proportional to 285,549.40, 393,423.78 and 188,581.06

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Solution

The fourth proportional to 285,549.40, 393,423.78 and 188,581.06 is: 259,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,549.40 : 393,423.78 = 188,581.06 : x
  2. Step 2: Convert to fraction form
    285,549.40/393,423.78 = 188,581.06/x
  3. Step 3: Cross multiply
    285,549.40x = 393,423.78 × 188,581.06
  4. Step 4: Simplify right side
    285,549.40x = 74,192,273,461.61
  5. Step 5: Solve for x
    x = 74,192,273,461.61/285,549.40
  6. Step 6: Final answer
    x = 259,822.90

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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.