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Finding the Fourth Proportional to 447,443.08, 617,473.50 and 256,467.64

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Solution

The fourth proportional to 447,443.08, 617,473.50 and 256,467.64 is: 353,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,443.08 : 617,473.50 = 256,467.64 : x
  2. Step 2: Convert to fraction form
    447,443.08/617,473.50 = 256,467.64/x
  3. Step 3: Cross multiply
    447,443.08x = 617,473.50 × 256,467.64
  4. Step 4: Simplify right side
    447,443.08x = 158,361,971,307.54
  5. Step 5: Solve for x
    x = 158,361,971,307.54/447,443.08
  6. Step 6: Final answer
    x = 353,926.52

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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.