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Finding the Fourth Proportional to 318,633.59, 439,662.89 and 182,642.51

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Solution

The fourth proportional to 318,633.59, 439,662.89 and 182,642.51 is: 252,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,633.59 : 439,662.89 = 182,642.51 : x
  2. Step 2: Convert to fraction form
    318,633.59/439,662.89 = 182,642.51/x
  3. Step 3: Cross multiply
    318,633.59x = 439,662.89 × 182,642.51
  4. Step 4: Simplify right side
    318,633.59x = 80,301,132,041.75
  5. Step 5: Solve for x
    x = 80,301,132,041.75/318,633.59
  6. Step 6: Final answer
    x = 252,017.16

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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.