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Finding the Fourth Proportional to 325,867.80, 488,801.70 and 302,248.20

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Solution

The fourth proportional to 325,867.80, 488,801.70 and 302,248.20 is: 453,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,867.80 : 488,801.70 = 302,248.20 : x
  2. Step 2: Convert to fraction form
    325,867.80/488,801.70 = 302,248.20/x
  3. Step 3: Cross multiply
    325,867.80x = 488,801.70 × 302,248.20
  4. Step 4: Simplify right side
    325,867.80x = 147,739,433,981.94
  5. Step 5: Solve for x
    x = 147,739,433,981.94/325,867.80
  6. Step 6: Final answer
    x = 453,372.30

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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.