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Finding the Fourth Proportional to 433,528.20, 649,854.90 and 197,040.60

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Solution

The fourth proportional to 433,528.20, 649,854.90 and 197,040.60 is: 295,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,528.20 : 649,854.90 = 197,040.60 : x
  2. Step 2: Convert to fraction form
    433,528.20/649,854.90 = 197,040.60/x
  3. Step 3: Cross multiply
    433,528.20x = 649,854.90 × 197,040.60
  4. Step 4: Simplify right side
    433,528.20x = 128,047,799,408.94
  5. Step 5: Solve for x
    x = 128,047,799,408.94/433,528.20
  6. Step 6: Final answer
    x = 295,362.10

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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.