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Finding the Fourth Proportional to 235,656.68, 325,402.65 and 218,561.63

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Solution

The fourth proportional to 235,656.68, 325,402.65 and 218,561.63 is: 301,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,656.68 : 325,402.65 = 218,561.63 : x
  2. Step 2: Convert to fraction form
    235,656.68/325,402.65 = 218,561.63/x
  3. Step 3: Cross multiply
    235,656.68x = 325,402.65 × 218,561.63
  4. Step 4: Simplify right side
    235,656.68x = 71,120,531,963.31
  5. Step 5: Solve for x
    x = 71,120,531,963.31/235,656.68
  6. Step 6: Final answer
    x = 301,797.23

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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.