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Finding the Fourth Proportional to 447,334.25, 617,338.34 and 256,384.58

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Solution

The fourth proportional to 447,334.25, 617,338.34 and 256,384.58 is: 353,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,334.25 : 617,338.34 = 256,384.58 : x
  2. Step 2: Convert to fraction form
    447,334.25/617,338.34 = 256,384.58/x
  3. Step 3: Cross multiply
    447,334.25x = 617,338.34 × 256,384.58
  4. Step 4: Simplify right side
    447,334.25x = 158,276,026,650.18
  5. Step 5: Solve for x
    x = 158,276,026,650.18/447,334.25
  6. Step 6: Final answer
    x = 353,820.50

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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.