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Finding the Fourth Proportional to 302,706.80, 454,060.20 and 270,047.60

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Solution

The fourth proportional to 302,706.80, 454,060.20 and 270,047.60 is: 405,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,706.80 : 454,060.20 = 270,047.60 : x
  2. Step 2: Convert to fraction form
    302,706.80/454,060.20 = 270,047.60/x
  3. Step 3: Cross multiply
    302,706.80x = 454,060.20 × 270,047.60
  4. Step 4: Simplify right side
    302,706.80x = 122,617,867,265.52
  5. Step 5: Solve for x
    x = 122,617,867,265.52/302,706.80
  6. Step 6: Final answer
    x = 405,071.40

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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.