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Finding the Fourth Proportional to 331,352.02, 496,990.99 and 91,483.93

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Solution

The fourth proportional to 331,352.02, 496,990.99 and 91,483.93 is: 137,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,352.02 : 496,990.99 = 91,483.93 : x
  2. Step 2: Convert to fraction form
    331,352.02/496,990.99 = 91,483.93/x
  3. Step 3: Cross multiply
    331,352.02x = 496,990.99 × 91,483.93
  4. Step 4: Simplify right side
    331,352.02x = 45,466,688,939.79
  5. Step 5: Solve for x
    x = 45,466,688,939.79/331,352.02
  6. Step 6: Final answer
    x = 137,215.67

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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.