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Finding the Fourth Proportional to 328,346.14, 492,519.35 and 79,028.14

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Solution

The fourth proportional to 328,346.14, 492,519.35 and 79,028.14 is: 118,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,346.14 : 492,519.35 = 79,028.14 : x
  2. Step 2: Convert to fraction form
    328,346.14/492,519.35 = 79,028.14/x
  3. Step 3: Cross multiply
    328,346.14x = 492,519.35 × 79,028.14
  4. Step 4: Simplify right side
    328,346.14x = 38,922,887,749.37
  5. Step 5: Solve for x
    x = 38,922,887,749.37/328,346.14
  6. Step 6: Final answer
    x = 118,542.24

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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.