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Finding the Fourth Proportional to 656,196.80, 919,297.60 and 656,196.80

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Solution

The fourth proportional to 656,196.80, 919,297.60 and 656,196.80 is: 919,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,196.80 : 919,297.60 = 656,196.80 : x
  2. Step 2: Convert to fraction form
    656,196.80/919,297.60 = 656,196.80/x
  3. Step 3: Cross multiply
    656,196.80x = 919,297.60 × 656,196.80
  4. Step 4: Simplify right side
    656,196.80x = 603,240,143,367.68
  5. Step 5: Solve for x
    x = 603,240,143,367.68/656,196.80
  6. Step 6: Final answer
    x = 919,297.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.