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Finding the Fourth Proportional to 493,560.30, 740,167.65 and 256,824.30

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Solution

The fourth proportional to 493,560.30, 740,167.65 and 256,824.30 is: 385,146.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,560.30 : 740,167.65 = 256,824.30 : x
  2. Step 2: Convert to fraction form
    493,560.30/740,167.65 = 256,824.30/x
  3. Step 3: Cross multiply
    493,560.30x = 740,167.65 × 256,824.30
  4. Step 4: Simplify right side
    493,560.30x = 190,093,038,593.90
  5. Step 5: Solve for x
    x = 190,093,038,593.90/493,560.30
  6. Step 6: Final answer
    x = 385,146.53

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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.