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Finding the Fourth Proportional to 508,449.72, 701,660.70 and 282,094.68

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Solution

The fourth proportional to 508,449.72, 701,660.70 and 282,094.68 is: 389,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,449.72 : 701,660.70 = 282,094.68 : x
  2. Step 2: Convert to fraction form
    508,449.72/701,660.70 = 282,094.68/x
  3. Step 3: Cross multiply
    508,449.72x = 701,660.70 × 282,094.68
  4. Step 4: Simplify right side
    508,449.72x = 197,934,750,635.08
  5. Step 5: Solve for x
    x = 197,934,750,635.08/508,449.72
  6. Step 6: Final answer
    x = 389,290.71

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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.