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Finding the Fourth Proportional to 1,561,270, 2,154,552.60 and 845,878

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Solution

The fourth proportional to 1,561,270, 2,154,552.60 and 845,878 is: 1,167,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,270 : 2,154,552.60 = 845,878 : x
  2. Step 2: Convert to fraction form
    1,561,270/2,154,552.60 = 845,878/x
  3. Step 3: Cross multiply
    1,561,270x = 2,154,552.60 × 845,878
  4. Step 4: Simplify right side
    1,561,270x = 1,822,488,644,182.80
  5. Step 5: Solve for x
    x = 1,822,488,644,182.80/1,561,270
  6. Step 6: Final answer
    x = 1,167,311.64

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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.