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Finding the Fourth Proportional to 433,509.21, 650,198.10 and 117,990.72

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Solution

The fourth proportional to 433,509.21, 650,198.10 and 117,990.72 is: 176,968.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,509.21 : 650,198.10 = 117,990.72 : x
  2. Step 2: Convert to fraction form
    433,509.21/650,198.10 = 117,990.72/x
  3. Step 3: Cross multiply
    433,509.21x = 650,198.10 × 117,990.72
  4. Step 4: Simplify right side
    433,509.21x = 76,717,341,961.63
  5. Step 5: Solve for x
    x = 76,717,341,961.63/433,509.21
  6. Step 6: Final answer
    x = 176,968.19

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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.