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Finding the Fourth Proportional to 295,145.15, 407,298.40 and 167,820.73

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Solution

The fourth proportional to 295,145.15, 407,298.40 and 167,820.73 is: 231,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,145.15 : 407,298.40 = 167,820.73 : x
  2. Step 2: Convert to fraction form
    295,145.15/407,298.40 = 167,820.73/x
  3. Step 3: Cross multiply
    295,145.15x = 407,298.40 × 167,820.73
  4. Step 4: Simplify right side
    295,145.15x = 68,353,113,378.03
  5. Step 5: Solve for x
    x = 68,353,113,378.03/295,145.15
  6. Step 6: Final answer
    x = 231,591.52

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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.