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Finding the Fourth Proportional to 645,000.84, 967,503.39 and 195,725.43

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Solution

The fourth proportional to 645,000.84, 967,503.39 and 195,725.43 is: 293,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,000.84 : 967,503.39 = 195,725.43 : x
  2. Step 2: Convert to fraction form
    645,000.84/967,503.39 = 195,725.43/x
  3. Step 3: Cross multiply
    645,000.84x = 967,503.39 × 195,725.43
  4. Step 4: Simplify right side
    645,000.84x = 189,365,017,034.21
  5. Step 5: Solve for x
    x = 189,365,017,034.21/645,000.84
  6. Step 6: Final answer
    x = 293,588.79

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Similar ratio
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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.