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Finding the Fourth Proportional to 292,907.60, 439,433.40 and 82,542.80

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Solution

The fourth proportional to 292,907.60, 439,433.40 and 82,542.80 is: 123,834.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,907.60 : 439,433.40 = 82,542.80 : x
  2. Step 2: Convert to fraction form
    292,907.60/439,433.40 = 82,542.80/x
  3. Step 3: Cross multiply
    292,907.60x = 439,433.40 × 82,542.80
  4. Step 4: Simplify right side
    292,907.60x = 36,272,063,249.52
  5. Step 5: Solve for x
    x = 36,272,063,249.52/292,907.60
  6. Step 6: Final answer
    x = 123,834.49

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1.5x scale

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.