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Finding the Fourth Proportional to 475,613.40, 712,815.30 and 194,813.40

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Solution

The fourth proportional to 475,613.40, 712,815.30 and 194,813.40 is: 291,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,613.40 : 712,815.30 = 194,813.40 : x
  2. Step 2: Convert to fraction form
    475,613.40/712,815.30 = 194,813.40/x
  3. Step 3: Cross multiply
    475,613.40x = 712,815.30 × 194,813.40
  4. Step 4: Simplify right side
    475,613.40x = 138,865,972,165.02
  5. Step 5: Solve for x
    x = 138,865,972,165.02/475,613.40
  6. Step 6: Final answer
    x = 291,972.37

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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.