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Finding the Fourth Proportional to 324,407.67, 447,617.65 and 181,145.67

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Solution

The fourth proportional to 324,407.67, 447,617.65 and 181,145.67 is: 249,944.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,407.67 : 447,617.65 = 181,145.67 : x
  2. Step 2: Convert to fraction form
    324,407.67/447,617.65 = 181,145.67/x
  3. Step 3: Cross multiply
    324,407.67x = 447,617.65 × 181,145.67
  4. Step 4: Simplify right side
    324,407.67x = 81,083,999,113.08
  5. Step 5: Solve for x
    x = 81,083,999,113.08/324,407.67
  6. Step 6: Final answer
    x = 249,944.77

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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.