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Finding the Fourth Proportional to 355,678.40, 533,906.40 and 222,708.80

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Solution

The fourth proportional to 355,678.40, 533,906.40 and 222,708.80 is: 334,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,678.40 : 533,906.40 = 222,708.80 : x
  2. Step 2: Convert to fraction form
    355,678.40/533,906.40 = 222,708.80/x
  3. Step 3: Cross multiply
    355,678.40x = 533,906.40 × 222,708.80
  4. Step 4: Simplify right side
    355,678.40x = 118,905,653,656.32
  5. Step 5: Solve for x
    x = 118,905,653,656.32/355,678.40
  6. Step 6: Final answer
    x = 334,306.65

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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.