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Finding the Fourth Proportional to 444,815.70, 667,223.55 and 429,069.30

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Solution

The fourth proportional to 444,815.70, 667,223.55 and 429,069.30 is: 643,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,815.70 : 667,223.55 = 429,069.30 : x
  2. Step 2: Convert to fraction form
    444,815.70/667,223.55 = 429,069.30/x
  3. Step 3: Cross multiply
    444,815.70x = 667,223.55 × 429,069.30
  4. Step 4: Simplify right side
    444,815.70x = 286,285,141,542.02
  5. Step 5: Solve for x
    x = 286,285,141,542.02/444,815.70
  6. Step 6: Final answer
    x = 643,603.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.