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Finding the Fourth Proportional to 1,214,600.70, 1,820,734.65 and 944,579.10

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Solution

The fourth proportional to 1,214,600.70, 1,820,734.65 and 944,579.10 is: 1,415,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,600.70 : 1,820,734.65 = 944,579.10 : x
  2. Step 2: Convert to fraction form
    1,214,600.70/1,820,734.65 = 944,579.10/x
  3. Step 3: Cross multiply
    1,214,600.70x = 1,820,734.65 × 944,579.10
  4. Step 4: Simplify right side
    1,214,600.70x = 1,719,827,897,035.82
  5. Step 5: Solve for x
    x = 1,719,827,897,035.82/1,214,600.70
  6. Step 6: Final answer
    x = 1,415,961.56

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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.