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Finding the Fourth Proportional to 451,915.14, 623,698.20 and 260,928.21

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Solution

The fourth proportional to 451,915.14, 623,698.20 and 260,928.21 is: 360,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,915.14 : 623,698.20 = 260,928.21 : x
  2. Step 2: Convert to fraction form
    451,915.14/623,698.20 = 260,928.21/x
  3. Step 3: Cross multiply
    451,915.14x = 623,698.20 × 260,928.21
  4. Step 4: Simplify right side
    451,915.14x = 162,740,454,906.22
  5. Step 5: Solve for x
    x = 162,740,454,906.22/451,915.14
  6. Step 6: Final answer
    x = 360,112.86

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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.