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Finding the Fourth Proportional to 723,699.06, 998,824.30 and 401,512.92

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Solution

The fourth proportional to 723,699.06, 998,824.30 and 401,512.92 is: 554,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,699.06 : 998,824.30 = 401,512.92 : x
  2. Step 2: Convert to fraction form
    723,699.06/998,824.30 = 401,512.92/x
  3. Step 3: Cross multiply
    723,699.06x = 998,824.30 × 401,512.92
  4. Step 4: Simplify right side
    723,699.06x = 401,040,861,259.96
  5. Step 5: Solve for x
    x = 401,040,861,259.96/723,699.06
  6. Step 6: Final answer
    x = 554,154.18

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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.