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Finding the Fourth Proportional to 328,207.44, 492,315.08 and 91,535.72

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Solution

The fourth proportional to 328,207.44, 492,315.08 and 91,535.72 is: 137,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,207.44 : 492,315.08 = 91,535.72 : x
  2. Step 2: Convert to fraction form
    328,207.44/492,315.08 = 91,535.72/x
  3. Step 3: Cross multiply
    328,207.44x = 492,315.08 × 91,535.72
  4. Step 4: Simplify right side
    328,207.44x = 45,064,415,314.66
  5. Step 5: Solve for x
    x = 45,064,415,314.66/328,207.44
  6. Step 6: Final answer
    x = 137,304.67

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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.