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Finding the Fourth Proportional to 447,434.40, 617,459.28 and 246,230.40

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Solution

The fourth proportional to 447,434.40, 617,459.28 and 246,230.40 is: 339,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,434.40 : 617,459.28 = 246,230.40 : x
  2. Step 2: Convert to fraction form
    447,434.40/617,459.28 = 246,230.40/x
  3. Step 3: Cross multiply
    447,434.40x = 617,459.28 × 246,230.40
  4. Step 4: Simplify right side
    447,434.40x = 152,037,245,498.11
  5. Step 5: Solve for x
    x = 152,037,245,498.11/447,434.40
  6. Step 6: Final answer
    x = 339,797.85

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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.