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Finding the Fourth Proportional to 416,146.72, 623,957.64 and 229,289.44

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Solution

The fourth proportional to 416,146.72, 623,957.64 and 229,289.44 is: 343,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,146.72 : 623,957.64 = 229,289.44 : x
  2. Step 2: Convert to fraction form
    416,146.72/623,957.64 = 229,289.44/x
  3. Step 3: Cross multiply
    416,146.72x = 623,957.64 × 229,289.44
  4. Step 4: Simplify right side
    416,146.72x = 143,066,897,859.32
  5. Step 5: Solve for x
    x = 143,066,897,859.32/416,146.72
  6. Step 6: Final answer
    x = 343,789.56

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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.