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Finding the Fourth Proportional to 493,870.68, 681,525.54 and 276,073.56

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Solution

The fourth proportional to 493,870.68, 681,525.54 and 276,073.56 is: 380,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,870.68 : 681,525.54 = 276,073.56 : x
  2. Step 2: Convert to fraction form
    493,870.68/681,525.54 = 276,073.56/x
  3. Step 3: Cross multiply
    493,870.68x = 681,525.54 × 276,073.56
  4. Step 4: Simplify right side
    493,870.68x = 188,151,182,058.72
  5. Step 5: Solve for x
    x = 188,151,182,058.72/493,870.68
  6. Step 6: Final answer
    x = 380,972.57

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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.