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Finding the Fourth Proportional to 614,069.85, 847,478.79 and 342,182.01

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Solution

The fourth proportional to 614,069.85, 847,478.79 and 342,182.01 is: 472,245.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,069.85 : 847,478.79 = 342,182.01 : x
  2. Step 2: Convert to fraction form
    614,069.85/847,478.79 = 342,182.01/x
  3. Step 3: Cross multiply
    614,069.85x = 847,478.79 × 342,182.01
  4. Step 4: Simplify right side
    614,069.85x = 289,991,995,794.57
  5. Step 5: Solve for x
    x = 289,991,995,794.57/614,069.85
  6. Step 6: Final answer
    x = 472,245.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.