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Finding the Fourth Proportional to 302,266.80, 453,400.20 and 255,610.80

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Solution

The fourth proportional to 302,266.80, 453,400.20 and 255,610.80 is: 383,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,266.80 : 453,400.20 = 255,610.80 : x
  2. Step 2: Convert to fraction form
    302,266.80/453,400.20 = 255,610.80/x
  3. Step 3: Cross multiply
    302,266.80x = 453,400.20 × 255,610.80
  4. Step 4: Simplify right side
    302,266.80x = 115,893,987,842.16
  5. Step 5: Solve for x
    x = 115,893,987,842.16/302,266.80
  6. Step 6: Final answer
    x = 383,416.20

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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.