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Finding the Fourth Proportional to 322,332.50, 483,498.23 and 85,675.19

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Solution

The fourth proportional to 322,332.50, 483,498.23 and 85,675.19 is: 128,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,332.50 : 483,498.23 = 85,675.19 : x
  2. Step 2: Convert to fraction form
    322,332.50/483,498.23 = 85,675.19/x
  3. Step 3: Cross multiply
    322,332.50x = 483,498.23 × 85,675.19
  4. Step 4: Simplify right side
    322,332.50x = 41,423,799,874.05
  5. Step 5: Solve for x
    x = 41,423,799,874.05/322,332.50
  6. Step 6: Final answer
    x = 128,512.64

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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.