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Finding the Fourth Proportional to 302,493.80, 453,279.90 and 255,492.20

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Solution

The fourth proportional to 302,493.80, 453,279.90 and 255,492.20 is: 382,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,493.80 : 453,279.90 = 255,492.20 : x
  2. Step 2: Convert to fraction form
    302,493.80/453,279.90 = 255,492.20/x
  3. Step 3: Cross multiply
    302,493.80x = 453,279.90 × 255,492.20
  4. Step 4: Simplify right side
    302,493.80x = 115,809,478,866.78
  5. Step 5: Solve for x
    x = 115,809,478,866.78/302,493.80
  6. Step 6: Final answer
    x = 382,849.10

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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.