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Finding the Fourth Proportional to 447,636.08, 617,820.60 and 256,650.80

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Solution

The fourth proportional to 447,636.08, 617,820.60 and 256,650.80 is: 354,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,636.08 : 617,820.60 = 256,650.80 : x
  2. Step 2: Convert to fraction form
    447,636.08/617,820.60 = 256,650.80/x
  3. Step 3: Cross multiply
    447,636.08x = 617,820.60 × 256,650.80
  4. Step 4: Simplify right side
    447,636.08x = 158,564,151,246.48
  5. Step 5: Solve for x
    x = 158,564,151,246.48/447,636.08
  6. Step 6: Final answer
    x = 354,225.58

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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.