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Finding the Fourth Proportional to 519,813.27, 779,719.35 and 195,661.92

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Solution

The fourth proportional to 519,813.27, 779,719.35 and 195,661.92 is: 293,492.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,813.27 : 779,719.35 = 195,661.92 : x
  2. Step 2: Convert to fraction form
    519,813.27/779,719.35 = 195,661.92/x
  3. Step 3: Cross multiply
    519,813.27x = 779,719.35 × 195,661.92
  4. Step 4: Simplify right side
    519,813.27x = 152,561,385,082.15
  5. Step 5: Solve for x
    x = 152,561,385,082.15/519,813.27
  6. Step 6: Final answer
    x = 293,492.67

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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.