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Finding the Fourth Proportional to 5,281,672.80, 7,922,509.20 and 2,884,209.69

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Solution

The fourth proportional to 5,281,672.80, 7,922,509.20 and 2,884,209.69 is: 4,326,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281,672.80 : 7,922,509.20 = 2,884,209.69 : x
  2. Step 2: Convert to fraction form
    5,281,672.80/7,922,509.20 = 2,884,209.69/x
  3. Step 3: Cross multiply
    5,281,672.80x = 7,922,509.20 × 2,884,209.69
  4. Step 4: Simplify right side
    5,281,672.80x = 22,850,177,803,754.15
  5. Step 5: Solve for x
    x = 22,850,177,803,754.15/5,281,672.80
  6. Step 6: Final answer
    x = 4,326,314.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.