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Finding the Fourth Proportional to 295,715.32, 408,086.70 and 168,390.94

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Solution

The fourth proportional to 295,715.32, 408,086.70 and 168,390.94 is: 232,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,715.32 : 408,086.70 = 168,390.94 : x
  2. Step 2: Convert to fraction form
    295,715.32/408,086.70 = 168,390.94/x
  3. Step 3: Cross multiply
    295,715.32x = 408,086.70 × 168,390.94
  4. Step 4: Simplify right side
    295,715.32x = 68,718,103,014.50
  5. Step 5: Solve for x
    x = 68,718,103,014.50/295,715.32
  6. Step 6: Final answer
    x = 232,379.25

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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.