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Finding the Fourth Proportional to 1,957,105.56, 2,936,795.58 and 819,767.16

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Solution

The fourth proportional to 1,957,105.56, 2,936,795.58 and 819,767.16 is: 1,230,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957,105.56 : 2,936,795.58 = 819,767.16 : x
  2. Step 2: Convert to fraction form
    1,957,105.56/2,936,795.58 = 819,767.16/x
  3. Step 3: Cross multiply
    1,957,105.56x = 2,936,795.58 × 819,767.16
  4. Step 4: Simplify right side
    1,957,105.56x = 2,407,488,572,117.15
  5. Step 5: Solve for x
    x = 2,407,488,572,117.15/1,957,105.56
  6. Step 6: Final answer
    x = 1,230,127.09

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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.