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Finding the Fourth Proportional to 1,073,973.36, 1,481,714.46 and 665,928.36

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Solution

The fourth proportional to 1,073,973.36, 1,481,714.46 and 665,928.36 is: 918,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,973.36 : 1,481,714.46 = 665,928.36 : x
  2. Step 2: Convert to fraction form
    1,073,973.36/1,481,714.46 = 665,928.36/x
  3. Step 3: Cross multiply
    1,073,973.36x = 1,481,714.46 × 665,928.36
  4. Step 4: Simplify right side
    1,073,973.36x = 986,715,680,336.09
  5. Step 5: Solve for x
    x = 986,715,680,336.09/1,073,973.36
  6. Step 6: Final answer
    x = 918,752.47

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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.