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Finding the Fourth Proportional to 366,690.38, 506,061.88 and 215,816.54

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Solution

The fourth proportional to 366,690.38, 506,061.88 and 215,816.54 is: 297,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,690.38 : 506,061.88 = 215,816.54 : x
  2. Step 2: Convert to fraction form
    366,690.38/506,061.88 = 215,816.54/x
  3. Step 3: Cross multiply
    366,690.38x = 506,061.88 × 215,816.54
  4. Step 4: Simplify right side
    366,690.38x = 109,216,520,897.64
  5. Step 5: Solve for x
    x = 109,216,520,897.64/366,690.38
  6. Step 6: Final answer
    x = 297,843.98

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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.