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Finding the Fourth Proportional to 2,648,569.60, 3,972,890.85 and 755,311.24

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Solution

The fourth proportional to 2,648,569.60, 3,972,890.85 and 755,311.24 is: 1,132,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,569.60 : 3,972,890.85 = 755,311.24 : x
  2. Step 2: Convert to fraction form
    2,648,569.60/3,972,890.85 = 755,311.24/x
  3. Step 3: Cross multiply
    2,648,569.60x = 3,972,890.85 × 755,311.24
  4. Step 4: Simplify right side
    2,648,569.60x = 3,000,769,114,298.15
  5. Step 5: Solve for x
    x = 3,000,769,114,298.15/2,648,569.60
  6. Step 6: Final answer
    x = 1,132,977.25

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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.