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Finding the Fourth Proportional to 1,235,886.20, 1,852,274.10 and 1,095,918.20

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Solution

The fourth proportional to 1,235,886.20, 1,852,274.10 and 1,095,918.20 is: 1,642,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,886.20 : 1,852,274.10 = 1,095,918.20 : x
  2. Step 2: Convert to fraction form
    1,235,886.20/1,852,274.10 = 1,095,918.20/x
  3. Step 3: Cross multiply
    1,235,886.20x = 1,852,274.10 × 1,095,918.20
  4. Step 4: Simplify right side
    1,235,886.20x = 2,029,940,897,578.62
  5. Step 5: Solve for x
    x = 2,029,940,897,578.62/1,235,886.20
  6. Step 6: Final answer
    x = 1,642,498.23

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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.