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Finding the Fourth Proportional to 447,148.81, 617,064.91 and 256,162.96

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Solution

The fourth proportional to 447,148.81, 617,064.91 and 256,162.96 is: 353,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,148.81 : 617,064.91 = 256,162.96 : x
  2. Step 2: Convert to fraction form
    447,148.81/617,064.91 = 256,162.96/x
  3. Step 3: Cross multiply
    447,148.81x = 617,064.91 × 256,162.96
  4. Step 4: Simplify right side
    447,148.81x = 158,069,173,857.73
  5. Step 5: Solve for x
    x = 158,069,173,857.73/447,148.81
  6. Step 6: Final answer
    x = 353,504.63

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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.