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Finding the Fourth Proportional to 6,369,330.96, 8,790,402.80 and 3,791,019.96

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Solution

The fourth proportional to 6,369,330.96, 8,790,402.80 and 3,791,019.96 is: 5,232,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369,330.96 : 8,790,402.80 = 3,791,019.96 : x
  2. Step 2: Convert to fraction form
    6,369,330.96/8,790,402.80 = 3,791,019.96/x
  3. Step 3: Cross multiply
    6,369,330.96x = 8,790,402.80 × 3,791,019.96
  4. Step 4: Simplify right side
    6,369,330.96x = 33,324,592,471,239.89
  5. Step 5: Solve for x
    x = 33,324,592,471,239.89/6,369,330.96
  6. Step 6: Final answer
    x = 5,232,039.70

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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.