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Finding the Fourth Proportional to 637,872.60, 956,808.90 and 194,640.60

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Solution

The fourth proportional to 637,872.60, 956,808.90 and 194,640.60 is: 291,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,872.60 : 956,808.90 = 194,640.60 : x
  2. Step 2: Convert to fraction form
    637,872.60/956,808.90 = 194,640.60/x
  3. Step 3: Cross multiply
    637,872.60x = 956,808.90 × 194,640.60
  4. Step 4: Simplify right side
    637,872.60x = 186,233,858,381.34
  5. Step 5: Solve for x
    x = 186,233,858,381.34/637,872.60
  6. Step 6: Final answer
    x = 291,960.90

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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.