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Finding the Fourth Proportional to 338,991.68, 467,614.08 and 211,445.76

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Solution

The fourth proportional to 338,991.68, 467,614.08 and 211,445.76 is: 291,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,991.68 : 467,614.08 = 211,445.76 : x
  2. Step 2: Convert to fraction form
    338,991.68/467,614.08 = 211,445.76/x
  3. Step 3: Cross multiply
    338,991.68x = 467,614.08 × 211,445.76
  4. Step 4: Simplify right side
    338,991.68x = 98,875,014,532.30
  5. Step 5: Solve for x
    x = 98,875,014,532.30/338,991.68
  6. Step 6: Final answer
    x = 291,673.87

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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.