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Finding the Fourth Proportional to 533,368.40, 799,990.99 and 133,978.76

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Solution

The fourth proportional to 533,368.40, 799,990.99 and 133,978.76 is: 200,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,368.40 : 799,990.99 = 133,978.76 : x
  2. Step 2: Convert to fraction form
    533,368.40/799,990.99 = 133,978.76/x
  3. Step 3: Cross multiply
    533,368.40x = 799,990.99 × 133,978.76
  4. Step 4: Simplify right side
    533,368.40x = 107,181,800,851.37
  5. Step 5: Solve for x
    x = 107,181,800,851.37/533,368.40
  6. Step 6: Final answer
    x = 200,952.66

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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.