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Finding the Fourth Proportional to 325,561.60, 488,342.40 and 112,329.10

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Solution

The fourth proportional to 325,561.60, 488,342.40 and 112,329.10 is: 168,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,561.60 : 488,342.40 = 112,329.10 : x
  2. Step 2: Convert to fraction form
    325,561.60/488,342.40 = 112,329.10/x
  3. Step 3: Cross multiply
    325,561.60x = 488,342.40 × 112,329.10
  4. Step 4: Simplify right side
    325,561.60x = 54,855,062,283.84
  5. Step 5: Solve for x
    x = 54,855,062,283.84/325,561.60
  6. Step 6: Final answer
    x = 168,493.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.