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Finding the Fourth Proportional to 374,338.08, 515,710.80 and 260,958.24

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Solution

The fourth proportional to 374,338.08, 515,710.80 and 260,958.24 is: 359,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,338.08 : 515,710.80 = 260,958.24 : x
  2. Step 2: Convert to fraction form
    374,338.08/515,710.80 = 260,958.24/x
  3. Step 3: Cross multiply
    374,338.08x = 515,710.80 × 260,958.24
  4. Step 4: Simplify right side
    374,338.08x = 134,578,982,716.99
  5. Step 5: Solve for x
    x = 134,578,982,716.99/374,338.08
  6. Step 6: Final answer
    x = 359,511.87

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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.