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Finding the Fourth Proportional to 479,492.35, 661,700.85 and 261,703.03

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Solution

The fourth proportional to 479,492.35, 661,700.85 and 261,703.03 is: 361,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,492.35 : 661,700.85 = 261,703.03 : x
  2. Step 2: Convert to fraction form
    479,492.35/661,700.85 = 261,703.03/x
  3. Step 3: Cross multiply
    479,492.35x = 661,700.85 × 261,703.03
  4. Step 4: Simplify right side
    479,492.35x = 173,169,116,350.71
  5. Step 5: Solve for x
    x = 173,169,116,350.71/479,492.35
  6. Step 6: Final answer
    x = 361,150.95

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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.