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Finding the Fourth Proportional to 329,125.42, 493,688.13 and 79,807.42

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Solution

The fourth proportional to 329,125.42, 493,688.13 and 79,807.42 is: 119,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,125.42 : 493,688.13 = 79,807.42 : x
  2. Step 2: Convert to fraction form
    329,125.42/493,688.13 = 79,807.42/x
  3. Step 3: Cross multiply
    329,125.42x = 493,688.13 × 79,807.42
  4. Step 4: Simplify right side
    329,125.42x = 39,399,975,939.92
  5. Step 5: Solve for x
    x = 39,399,975,939.92/329,125.42
  6. Step 6: Final answer
    x = 119,711.13

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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.