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Finding the Fourth Proportional to 1,229,668.60, 1,844,502.90 and 1,005,282.40

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Solution

The fourth proportional to 1,229,668.60, 1,844,502.90 and 1,005,282.40 is: 1,507,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,668.60 : 1,844,502.90 = 1,005,282.40 : x
  2. Step 2: Convert to fraction form
    1,229,668.60/1,844,502.90 = 1,005,282.40/x
  3. Step 3: Cross multiply
    1,229,668.60x = 1,844,502.90 × 1,005,282.40
  4. Step 4: Simplify right side
    1,229,668.60x = 1,854,246,302,118.96
  5. Step 5: Solve for x
    x = 1,854,246,302,118.96/1,229,668.60
  6. Step 6: Final answer
    x = 1,507,923.60

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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.