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Finding the Fourth Proportional to 3,279,762.80, 4,920,565.80 and 1,596,921.20

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Solution

The fourth proportional to 3,279,762.80, 4,920,565.80 and 1,596,921.20 is: 2,395,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279,762.80 : 4,920,565.80 = 1,596,921.20 : x
  2. Step 2: Convert to fraction form
    3,279,762.80/4,920,565.80 = 1,596,921.20/x
  3. Step 3: Cross multiply
    3,279,762.80x = 4,920,565.80 × 1,596,921.20
  4. Step 4: Simplify right side
    3,279,762.80x = 7,857,755,842,014.96
  5. Step 5: Solve for x
    x = 7,857,755,842,014.96/3,279,762.80
  6. Step 6: Final answer
    x = 2,395,830.53

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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.