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Finding the Fourth Proportional to 302,695.45, 417,749.20 and 226,081.53

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Solution

The fourth proportional to 302,695.45, 417,749.20 and 226,081.53 is: 312,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,695.45 : 417,749.20 = 226,081.53 : x
  2. Step 2: Convert to fraction form
    302,695.45/417,749.20 = 226,081.53/x
  3. Step 3: Cross multiply
    302,695.45x = 417,749.20 × 226,081.53
  4. Step 4: Simplify right side
    302,695.45x = 94,445,377,727.07
  5. Step 5: Solve for x
    x = 94,445,377,727.07/302,695.45
  6. Step 6: Final answer
    x = 312,014.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.