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Finding the Fourth Proportional to 296,378.83, 408,998.65 and 169,056.55

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Solution

The fourth proportional to 296,378.83, 408,998.65 and 169,056.55 is: 233,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,378.83 : 408,998.65 = 169,056.55 : x
  2. Step 2: Convert to fraction form
    296,378.83/408,998.65 = 169,056.55/x
  3. Step 3: Cross multiply
    296,378.83x = 408,998.65 × 169,056.55
  4. Step 4: Simplify right side
    296,378.83x = 69,143,897,833.38
  5. Step 5: Solve for x
    x = 69,143,897,833.38/296,378.83
  6. Step 6: Final answer
    x = 233,295.67

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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.