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Finding the Fourth Proportional to 508,958.88, 763,478.36 and 134,981.88

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Solution

The fourth proportional to 508,958.88, 763,478.36 and 134,981.88 is: 202,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,958.88 : 763,478.36 = 134,981.88 : x
  2. Step 2: Convert to fraction form
    508,958.88/763,478.36 = 134,981.88/x
  3. Step 3: Cross multiply
    508,958.88x = 763,478.36 × 134,981.88
  4. Step 4: Simplify right side
    508,958.88x = 103,055,744,372.12
  5. Step 5: Solve for x
    x = 103,055,744,372.12/508,958.88
  6. Step 6: Final answer
    x = 202,483.44

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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.