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Finding the Fourth Proportional to 639,330.10, 958,888.22 and 234,438.64

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Solution

The fourth proportional to 639,330.10, 958,888.22 and 234,438.64 is: 351,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,330.10 : 958,888.22 = 234,438.64 : x
  2. Step 2: Convert to fraction form
    639,330.10/958,888.22 = 234,438.64/x
  3. Step 3: Cross multiply
    639,330.10x = 958,888.22 × 234,438.64
  4. Step 4: Simplify right side
    639,330.10x = 224,800,450,208.82
  5. Step 5: Solve for x
    x = 224,800,450,208.82/639,330.10
  6. Step 6: Final answer
    x = 351,618.75

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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.