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Finding the Fourth Proportional to 324,038.60, 486,057.90 and 276,799.40

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Solution

The fourth proportional to 324,038.60, 486,057.90 and 276,799.40 is: 415,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,038.60 : 486,057.90 = 276,799.40 : x
  2. Step 2: Convert to fraction form
    324,038.60/486,057.90 = 276,799.40/x
  3. Step 3: Cross multiply
    324,038.60x = 486,057.90 × 276,799.40
  4. Step 4: Simplify right side
    324,038.60x = 134,540,535,085.26
  5. Step 5: Solve for x
    x = 134,540,535,085.26/324,038.60
  6. Step 6: Final answer
    x = 415,199.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.