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Finding the Fourth Proportional to 447,572.76, 617,632.26 and 256,453.32

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Solution

The fourth proportional to 447,572.76, 617,632.26 and 256,453.32 is: 353,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,572.76 : 617,632.26 = 256,453.32 : x
  2. Step 2: Convert to fraction form
    447,572.76/617,632.26 = 256,453.32/x
  3. Step 3: Cross multiply
    447,572.76x = 617,632.26 × 256,453.32
  4. Step 4: Simplify right side
    447,572.76x = 158,393,843,616.10
  5. Step 5: Solve for x
    x = 158,393,843,616.10/447,572.76
  6. Step 6: Final answer
    x = 353,895.18

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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.