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Finding the Fourth Proportional to 389,813.44, 584,720.20 and 94,325.44

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Solution

The fourth proportional to 389,813.44, 584,720.20 and 94,325.44 is: 141,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,813.44 : 584,720.20 = 94,325.44 : x
  2. Step 2: Convert to fraction form
    389,813.44/584,720.20 = 94,325.44/x
  3. Step 3: Cross multiply
    389,813.44x = 584,720.20 × 94,325.44
  4. Step 4: Simplify right side
    389,813.44x = 55,153,990,141.89
  5. Step 5: Solve for x
    x = 55,153,990,141.89/389,813.44
  6. Step 6: Final answer
    x = 141,488.17

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Similar ratio
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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.