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Finding the Fourth Proportional to 447,589.77, 617,681.74 and 243,646.55

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Solution

The fourth proportional to 447,589.77, 617,681.74 and 243,646.55 is: 336,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,589.77 : 617,681.74 = 243,646.55 : x
  2. Step 2: Convert to fraction form
    447,589.77/617,681.74 = 243,646.55/x
  3. Step 3: Cross multiply
    447,589.77x = 617,681.74 × 243,646.55
  4. Step 4: Simplify right side
    447,589.77x = 150,496,024,949.00
  5. Step 5: Solve for x
    x = 150,496,024,949.00/447,589.77
  6. Step 6: Final answer
    x = 336,236.52

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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.