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Finding the Fourth Proportional to 447,391.46, 617,400.18 and 246,187.46

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Solution

The fourth proportional to 447,391.46, 617,400.18 and 246,187.46 is: 339,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,391.46 : 617,400.18 = 246,187.46 : x
  2. Step 2: Convert to fraction form
    447,391.46/617,400.18 = 246,187.46/x
  3. Step 3: Cross multiply
    447,391.46x = 617,400.18 × 246,187.46
  4. Step 4: Simplify right side
    447,391.46x = 151,996,182,117.74
  5. Step 5: Solve for x
    x = 151,996,182,117.74/447,391.46
  6. Step 6: Final answer
    x = 339,738.68

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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.