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Finding the Fourth Proportional to 722,098.23, 996,526.71 and 399,808.32

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Solution

The fourth proportional to 722,098.23, 996,526.71 and 399,808.32 is: 551,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,098.23 : 996,526.71 = 399,808.32 : x
  2. Step 2: Convert to fraction form
    722,098.23/996,526.71 = 399,808.32/x
  3. Step 3: Cross multiply
    722,098.23x = 996,526.71 × 399,808.32
  4. Step 4: Simplify right side
    722,098.23x = 398,419,667,986.85
  5. Step 5: Solve for x
    x = 398,419,667,986.85/722,098.23
  6. Step 6: Final answer
    x = 551,752.73

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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.