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Finding the Fourth Proportional to 508,304.72, 701,449.80 and 281,948.24

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Solution

The fourth proportional to 508,304.72, 701,449.80 and 281,948.24 is: 389,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,304.72 : 701,449.80 = 281,948.24 : x
  2. Step 2: Convert to fraction form
    508,304.72/701,449.80 = 281,948.24/x
  3. Step 3: Cross multiply
    508,304.72x = 701,449.80 × 281,948.24
  4. Step 4: Simplify right side
    508,304.72x = 197,772,536,558.35
  5. Step 5: Solve for x
    x = 197,772,536,558.35/508,304.72
  6. Step 6: Final answer
    x = 389,082.63

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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.