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Finding the Fourth Proportional to 375,078.80, 562,877.40 and 269,987.60

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Solution

The fourth proportional to 375,078.80, 562,877.40 and 269,987.60 is: 405,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,078.80 : 562,877.40 = 269,987.60 : x
  2. Step 2: Convert to fraction form
    375,078.80/562,877.40 = 269,987.60/x
  3. Step 3: Cross multiply
    375,078.80x = 562,877.40 × 269,987.60
  4. Step 4: Simplify right side
    375,078.80x = 151,969,918,320.24
  5. Step 5: Solve for x
    x = 151,969,918,320.24/375,078.80
  6. Step 6: Final answer
    x = 405,167.98

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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.