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Finding the Fourth Proportional to 1,001,714.13, 1,498,979.47 and 867,240.70

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Solution

The fourth proportional to 1,001,714.13, 1,498,979.47 and 867,240.70 is: 1,297,751.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,714.13 : 1,498,979.47 = 867,240.70 : x
  2. Step 2: Convert to fraction form
    1,001,714.13/1,498,979.47 = 867,240.70/x
  3. Step 3: Cross multiply
    1,001,714.13x = 1,498,979.47 × 867,240.70
  4. Step 4: Simplify right side
    1,001,714.13x = 1,299,976,004,848.43
  5. Step 5: Solve for x
    x = 1,299,976,004,848.43/1,001,714.13
  6. Step 6: Final answer
    x = 1,297,751.49

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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.