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Finding the Fourth Proportional to 278,527.96, 384,368.57 and 151,203.56

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Solution

The fourth proportional to 278,527.96, 384,368.57 and 151,203.56 is: 208,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,527.96 : 384,368.57 = 151,203.56 : x
  2. Step 2: Convert to fraction form
    278,527.96/384,368.57 = 151,203.56/x
  3. Step 3: Cross multiply
    278,527.96x = 384,368.57 × 151,203.56
  4. Step 4: Simplify right side
    278,527.96x = 58,117,893,458.25
  5. Step 5: Solve for x
    x = 58,117,893,458.25/278,527.96
  6. Step 6: Final answer
    x = 208,660.90

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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.