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Finding the Fourth Proportional to 418,472.41, 577,554.96 and 255,223.62

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Solution

The fourth proportional to 418,472.41, 577,554.96 and 255,223.62 is: 352,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,472.41 : 577,554.96 = 255,223.62 : x
  2. Step 2: Convert to fraction form
    418,472.41/577,554.96 = 255,223.62/x
  3. Step 3: Cross multiply
    418,472.41x = 577,554.96 × 255,223.62
  4. Step 4: Simplify right side
    418,472.41x = 147,405,667,640.16
  5. Step 5: Solve for x
    x = 147,405,667,640.16/418,472.41
  6. Step 6: Final answer
    x = 352,247.04

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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.