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Finding the Fourth Proportional to 664,130.80, 996,196.20 and 545,935.60

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Solution

The fourth proportional to 664,130.80, 996,196.20 and 545,935.60 is: 818,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,130.80 : 996,196.20 = 545,935.60 : x
  2. Step 2: Convert to fraction form
    664,130.80/996,196.20 = 545,935.60/x
  3. Step 3: Cross multiply
    664,130.80x = 996,196.20 × 545,935.60
  4. Step 4: Simplify right side
    664,130.80x = 543,858,970,164.72
  5. Step 5: Solve for x
    x = 543,858,970,164.72/664,130.80
  6. Step 6: Final answer
    x = 818,903.40

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Double scale
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Similar ratio
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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.