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Finding the Fourth Proportional to 684,197.70, 944,190.45 and 382,391.70

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Solution

The fourth proportional to 684,197.70, 944,190.45 and 382,391.70 is: 527,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,197.70 : 944,190.45 = 382,391.70 : x
  2. Step 2: Convert to fraction form
    684,197.70/944,190.45 = 382,391.70/x
  3. Step 3: Cross multiply
    684,197.70x = 944,190.45 × 382,391.70
  4. Step 4: Simplify right side
    684,197.70x = 361,050,586,578.31
  5. Step 5: Solve for x
    x = 361,050,586,578.31/684,197.70
  6. Step 6: Final answer
    x = 527,699.22

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Double scale
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Similar ratio
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1.5x scale

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.