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Finding the Fourth Proportional to 318,873.18, 440,044.98 and 175,633.22

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Solution

The fourth proportional to 318,873.18, 440,044.98 and 175,633.22 is: 242,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,873.18 : 440,044.98 = 175,633.22 : x
  2. Step 2: Convert to fraction form
    318,873.18/440,044.98 = 175,633.22/x
  3. Step 3: Cross multiply
    318,873.18x = 440,044.98 × 175,633.22
  4. Step 4: Simplify right side
    318,873.18x = 77,286,518,211.66
  5. Step 5: Solve for x
    x = 77,286,518,211.66/318,873.18
  6. Step 6: Final answer
    x = 242,373.84

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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.