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Finding the Fourth Proportional to 3,946,686.03, 5,920,767.09 and 1,250,287.20

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Solution

The fourth proportional to 3,946,686.03, 5,920,767.09 and 1,250,287.20 is: 1,875,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946,686.03 : 5,920,767.09 = 1,250,287.20 : x
  2. Step 2: Convert to fraction form
    3,946,686.03/5,920,767.09 = 1,250,287.20/x
  3. Step 3: Cross multiply
    3,946,686.03x = 5,920,767.09 × 1,250,287.20
  4. Step 4: Simplify right side
    3,946,686.03x = 7,402,659,306,808.25
  5. Step 5: Solve for x
    x = 7,402,659,306,808.25/3,946,686.03
  6. Step 6: Final answer
    x = 1,875,664.61

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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.