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Finding the Fourth Proportional to 610,466.40, 915,067.80 and 273,668.40

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Solution

The fourth proportional to 610,466.40, 915,067.80 and 273,668.40 is: 410,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,466.40 : 915,067.80 = 273,668.40 : x
  2. Step 2: Convert to fraction form
    610,466.40/915,067.80 = 273,668.40/x
  3. Step 3: Cross multiply
    610,466.40x = 915,067.80 × 273,668.40
  4. Step 4: Simplify right side
    610,466.40x = 250,425,140,717.52
  5. Step 5: Solve for x
    x = 250,425,140,717.52/610,466.40
  6. Step 6: Final answer
    x = 410,219.37

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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.