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Finding the Fourth Proportional to 447,537.72, 617,616.54 and 256,587.24

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Solution

The fourth proportional to 447,537.72, 617,616.54 and 256,587.24 is: 354,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,537.72 : 617,616.54 = 256,587.24 : x
  2. Step 2: Convert to fraction form
    447,537.72/617,616.54 = 256,587.24/x
  3. Step 3: Cross multiply
    447,537.72x = 617,616.54 × 256,587.24
  4. Step 4: Simplify right side
    447,537.72x = 158,472,523,376.95
  5. Step 5: Solve for x
    x = 158,472,523,376.95/447,537.72
  6. Step 6: Final answer
    x = 354,098.70

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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.