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Finding the Fourth Proportional to 474,289.52, 711,435.50 and 193,806.77

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Solution

The fourth proportional to 474,289.52, 711,435.50 and 193,806.77 is: 290,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,289.52 : 711,435.50 = 193,806.77 : x
  2. Step 2: Convert to fraction form
    474,289.52/711,435.50 = 193,806.77/x
  3. Step 3: Cross multiply
    474,289.52x = 711,435.50 × 193,806.77
  4. Step 4: Simplify right side
    474,289.52x = 137,881,015,349.30
  5. Step 5: Solve for x
    x = 137,881,015,349.30/474,289.52
  6. Step 6: Final answer
    x = 290,710.65

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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.