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Finding the Fourth Proportional to 1,170,407, 1,615,161.66 and 633,863

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Solution

The fourth proportional to 1,170,407, 1,615,161.66 and 633,863 is: 874,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,407 : 1,615,161.66 = 633,863 : x
  2. Step 2: Convert to fraction form
    1,170,407/1,615,161.66 = 633,863/x
  3. Step 3: Cross multiply
    1,170,407x = 1,615,161.66 × 633,863
  4. Step 4: Simplify right side
    1,170,407x = 1,023,791,215,292.58
  5. Step 5: Solve for x
    x = 1,023,791,215,292.58/1,170,407
  6. Step 6: Final answer
    x = 874,730.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.