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Finding the Fourth Proportional to 382,649.70, 573,974.55 and 341,315.40

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Solution

The fourth proportional to 382,649.70, 573,974.55 and 341,315.40 is: 511,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,649.70 : 573,974.55 = 341,315.40 : x
  2. Step 2: Convert to fraction form
    382,649.70/573,974.55 = 341,315.40/x
  3. Step 3: Cross multiply
    382,649.70x = 573,974.55 × 341,315.40
  4. Step 4: Simplify right side
    382,649.70x = 195,906,353,123.07
  5. Step 5: Solve for x
    x = 195,906,353,123.07/382,649.70
  6. Step 6: Final answer
    x = 511,973.10

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Double scale
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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.