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Finding the Fourth Proportional to 825,622.80, 1,237,267.80 and 610,713.60

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Solution

The fourth proportional to 825,622.80, 1,237,267.80 and 610,713.60 is: 915,207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,622.80 : 1,237,267.80 = 610,713.60 : x
  2. Step 2: Convert to fraction form
    825,622.80/1,237,267.80 = 610,713.60/x
  3. Step 3: Cross multiply
    825,622.80x = 1,237,267.80 × 610,713.60
  4. Step 4: Simplify right side
    825,622.80x = 755,616,272,302.08
  5. Step 5: Solve for x
    x = 755,616,272,302.08/825,622.80
  6. Step 6: Final answer
    x = 915,207.61

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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.