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Finding the Fourth Proportional to 474,338.21, 654,586.51 and 259,478.22

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Solution

The fourth proportional to 474,338.21, 654,586.51 and 259,478.22 is: 358,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,338.21 : 654,586.51 = 259,478.22 : x
  2. Step 2: Convert to fraction form
    474,338.21/654,586.51 = 259,478.22/x
  3. Step 3: Cross multiply
    474,338.21x = 654,586.51 × 259,478.22
  4. Step 4: Simplify right side
    474,338.21x = 169,850,942,450.81
  5. Step 5: Solve for x
    x = 169,850,942,450.81/474,338.21
  6. Step 6: Final answer
    x = 358,079.82

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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.