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Finding the Fourth Proportional to 318,863.25, 440,051.25 and 175,623.24

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Solution

The fourth proportional to 318,863.25, 440,051.25 and 175,623.24 is: 242,371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,863.25 : 440,051.25 = 175,623.24 : x
  2. Step 2: Convert to fraction form
    318,863.25/440,051.25 = 175,623.24/x
  3. Step 3: Cross multiply
    318,863.25x = 440,051.25 × 175,623.24
  4. Step 4: Simplify right side
    318,863.25x = 77,283,226,291.05
  5. Step 5: Solve for x
    x = 77,283,226,291.05/318,863.25
  6. Step 6: Final answer
    x = 242,371.07

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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.