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Finding the Fourth Proportional to 404,839.60, 607,259.40 and 124,370.80

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Solution

The fourth proportional to 404,839.60, 607,259.40 and 124,370.80 is: 186,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,839.60 : 607,259.40 = 124,370.80 : x
  2. Step 2: Convert to fraction form
    404,839.60/607,259.40 = 124,370.80/x
  3. Step 3: Cross multiply
    404,839.60x = 607,259.40 × 124,370.80
  4. Step 4: Simplify right side
    404,839.60x = 75,525,337,385.52
  5. Step 5: Solve for x
    x = 75,525,337,385.52/404,839.60
  6. Step 6: Final answer
    x = 186,556.20

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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.