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Finding the Fourth Proportional to 256,493.52, 353,777.48 and 180,029.68

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Solution

The fourth proportional to 256,493.52, 353,777.48 and 180,029.68 is: 248,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493.52 : 353,777.48 = 180,029.68 : x
  2. Step 2: Convert to fraction form
    256,493.52/353,777.48 = 180,029.68/x
  3. Step 3: Cross multiply
    256,493.52x = 353,777.48 × 180,029.68
  4. Step 4: Simplify right side
    256,493.52x = 63,690,446,515.61
  5. Step 5: Solve for x
    x = 63,690,446,515.61/256,493.52
  6. Step 6: Final answer
    x = 248,312.11

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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.