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Finding the Fourth Proportional to 1,003,161.51, 1,503,856.51 and 767,556

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Solution

The fourth proportional to 1,003,161.51, 1,503,856.51 and 767,556 is: 1,150,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,161.51 : 1,503,856.51 = 767,556 : x
  2. Step 2: Convert to fraction form
    1,003,161.51/1,503,856.51 = 767,556/x
  3. Step 3: Cross multiply
    1,003,161.51x = 1,503,856.51 × 767,556
  4. Step 4: Simplify right side
    1,003,161.51x = 1,154,294,085,470.67
  5. Step 5: Solve for x
    x = 1,154,294,085,470.67/1,003,161.51
  6. Step 6: Final answer
    x = 1,150,656.27

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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.