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Finding the Fourth Proportional to 965,616.60, 1,448,417.70 and 291,696.60

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Solution

The fourth proportional to 965,616.60, 1,448,417.70 and 291,696.60 is: 437,542.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,616.60 : 1,448,417.70 = 291,696.60 : x
  2. Step 2: Convert to fraction form
    965,616.60/1,448,417.70 = 291,696.60/x
  3. Step 3: Cross multiply
    965,616.60x = 1,448,417.70 × 291,696.60
  4. Step 4: Simplify right side
    965,616.60x = 422,498,518,469.82
  5. Step 5: Solve for x
    x = 422,498,518,469.82/965,616.60
  6. Step 6: Final answer
    x = 437,542.73

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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.