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Finding the Fourth Proportional to 573,612.68, 791,552.98 and 318,958.40

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Solution

The fourth proportional to 573,612.68, 791,552.98 and 318,958.40 is: 440,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,612.68 : 791,552.98 = 318,958.40 : x
  2. Step 2: Convert to fraction form
    573,612.68/791,552.98 = 318,958.40/x
  3. Step 3: Cross multiply
    573,612.68x = 791,552.98 × 318,958.40
  4. Step 4: Simplify right side
    573,612.68x = 252,472,472,016.03
  5. Step 5: Solve for x
    x = 252,472,472,016.03/573,612.68
  6. Step 6: Final answer
    x = 440,144.51

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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.