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Finding the Fourth Proportional to 6,319,607.20, 9,479,410.80 and 5,059,895.20

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Solution

The fourth proportional to 6,319,607.20, 9,479,410.80 and 5,059,895.20 is: 7,589,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319,607.20 : 9,479,410.80 = 5,059,895.20 : x
  2. Step 2: Convert to fraction form
    6,319,607.20/9,479,410.80 = 5,059,895.20/x
  3. Step 3: Cross multiply
    6,319,607.20x = 9,479,410.80 × 5,059,895.20
  4. Step 4: Simplify right side
    6,319,607.20x = 47,964,825,205,748.16
  5. Step 5: Solve for x
    x = 47,964,825,205,748.16/6,319,607.20
  6. Step 6: Final answer
    x = 7,589,842.80

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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.