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Finding the Fourth Proportional to 1,786,281.80, 2,679,422.70 and 1,450,358.60

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Solution

The fourth proportional to 1,786,281.80, 2,679,422.70 and 1,450,358.60 is: 2,175,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,281.80 : 2,679,422.70 = 1,450,358.60 : x
  2. Step 2: Convert to fraction form
    1,786,281.80/2,679,422.70 = 1,450,358.60/x
  3. Step 3: Cross multiply
    1,786,281.80x = 2,679,422.70 × 1,450,358.60
  4. Step 4: Simplify right side
    1,786,281.80x = 3,886,123,755,980.22
  5. Step 5: Solve for x
    x = 3,886,123,755,980.22/1,786,281.80
  6. Step 6: Final answer
    x = 2,175,537.90

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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.