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Finding the Fourth Proportional to 447,407.04, 617,404.32 and 256,284.48

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Solution

The fourth proportional to 447,407.04, 617,404.32 and 256,284.48 is: 353,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,407.04 : 617,404.32 = 256,284.48 : x
  2. Step 2: Convert to fraction form
    447,407.04/617,404.32 = 256,284.48/x
  3. Step 3: Cross multiply
    447,407.04x = 617,404.32 × 256,284.48
  4. Step 4: Simplify right side
    447,407.04x = 158,231,145,100.95
  5. Step 5: Solve for x
    x = 158,231,145,100.95/447,407.04
  6. Step 6: Final answer
    x = 353,662.62

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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.