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Finding the Fourth Proportional to 543,542.40, 814,924.80 and 243,777.60

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Solution

The fourth proportional to 543,542.40, 814,924.80 and 243,777.60 is: 365,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,542.40 : 814,924.80 = 243,777.60 : x
  2. Step 2: Convert to fraction form
    543,542.40/814,924.80 = 243,777.60/x
  3. Step 3: Cross multiply
    543,542.40x = 814,924.80 × 243,777.60
  4. Step 4: Simplify right side
    543,542.40x = 198,660,411,924.48
  5. Step 5: Solve for x
    x = 198,660,411,924.48/543,542.40
  6. Step 6: Final answer
    x = 365,492.02

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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.