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Finding the Fourth Proportional to 447,270, 617,232.60 and 246,061.68

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Solution

The fourth proportional to 447,270, 617,232.60 and 246,061.68 is: 339,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,270 : 617,232.60 = 246,061.68 : x
  2. Step 2: Convert to fraction form
    447,270/617,232.60 = 246,061.68/x
  3. Step 3: Cross multiply
    447,270x = 617,232.60 × 246,061.68
  4. Step 4: Simplify right side
    447,270x = 151,877,290,506.77
  5. Step 5: Solve for x
    x = 151,877,290,506.77/447,270
  6. Step 6: Final answer
    x = 339,565.12

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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.