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Finding the Fourth Proportional to 386,590.59, 533,494.49 and 214,536.56

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Solution

The fourth proportional to 386,590.59, 533,494.49 and 214,536.56 is: 296,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,590.59 : 533,494.49 = 214,536.56 : x
  2. Step 2: Convert to fraction form
    386,590.59/533,494.49 = 214,536.56/x
  3. Step 3: Cross multiply
    386,590.59x = 533,494.49 × 214,536.56
  4. Step 4: Simplify right side
    386,590.59x = 114,454,068,923.40
  5. Step 5: Solve for x
    x = 114,454,068,923.40/386,590.59
  6. Step 6: Final answer
    x = 296,060.15

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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.