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Finding the Fourth Proportional to 6,369,330.95, 8,790,402.80 and 3,791,019.95

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Solution

The fourth proportional to 6,369,330.95, 8,790,402.80 and 3,791,019.95 is: 5,232,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369,330.95 : 8,790,402.80 = 3,791,019.95 : x
  2. Step 2: Convert to fraction form
    6,369,330.95/8,790,402.80 = 3,791,019.95/x
  3. Step 3: Cross multiply
    6,369,330.95x = 8,790,402.80 × 3,791,019.95
  4. Step 4: Simplify right side
    6,369,330.95x = 33,324,592,383,335.86
  5. Step 5: Solve for x
    x = 33,324,592,383,335.86/6,369,330.95
  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.