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Finding the Fourth Proportional to 447,438.58, 617,467.29 and 256,463.14

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Solution

The fourth proportional to 447,438.58, 617,467.29 and 256,463.14 is: 353,920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,438.58 : 617,467.29 = 256,463.14 : x
  2. Step 2: Convert to fraction form
    447,438.58/617,467.29 = 256,463.14/x
  3. Step 3: Cross multiply
    447,438.58x = 617,467.29 × 256,463.14
  4. Step 4: Simplify right side
    447,438.58x = 158,357,600,040.69
  5. Step 5: Solve for x
    x = 158,357,600,040.69/447,438.58
  6. Step 6: Final answer
    x = 353,920.31

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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.