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Finding the Fourth Proportional to 302,561.20, 453,841.80 and 203,028.40

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Solution

The fourth proportional to 302,561.20, 453,841.80 and 203,028.40 is: 304,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,561.20 : 453,841.80 = 203,028.40 : x
  2. Step 2: Convert to fraction form
    302,561.20/453,841.80 = 203,028.40/x
  3. Step 3: Cross multiply
    302,561.20x = 453,841.80 × 203,028.40
  4. Step 4: Simplify right side
    302,561.20x = 92,142,774,507.12
  5. Step 5: Solve for x
    x = 92,142,774,507.12/302,561.20
  6. Step 6: Final answer
    x = 304,542.60

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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.