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Finding the Fourth Proportional to 433,699.20, 650,111.40 and 197,211.60

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Solution

The fourth proportional to 433,699.20, 650,111.40 and 197,211.60 is: 295,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,699.20 : 650,111.40 = 197,211.60 : x
  2. Step 2: Convert to fraction form
    433,699.20/650,111.40 = 197,211.60/x
  3. Step 3: Cross multiply
    433,699.20x = 650,111.40 × 197,211.60
  4. Step 4: Simplify right side
    433,699.20x = 128,209,509,372.24
  5. Step 5: Solve for x
    x = 128,209,509,372.24/433,699.20
  6. Step 6: Final answer
    x = 295,618.51

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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.