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Finding the Fourth Proportional to 462,040.80, 693,291.60 and 262,514.40

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Solution

The fourth proportional to 462,040.80, 693,291.60 and 262,514.40 is: 393,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,040.80 : 693,291.60 = 262,514.40 : x
  2. Step 2: Convert to fraction form
    462,040.80/693,291.60 = 262,514.40/x
  3. Step 3: Cross multiply
    462,040.80x = 693,291.60 × 262,514.40
  4. Step 4: Simplify right side
    462,040.80x = 181,999,028,399.04
  5. Step 5: Solve for x
    x = 181,999,028,399.04/462,040.80
  6. Step 6: Final answer
    x = 393,902.50

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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.