Home / 629,943.80-944,915.70-378,001.40

Finding the Fourth Proportional to 629,943.80, 944,915.70 and 378,001.40

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Solution

The fourth proportional to 629,943.80, 944,915.70 and 378,001.40 is: 567,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,943.80 : 944,915.70 = 378,001.40 : x
  2. Step 2: Convert to fraction form
    629,943.80/944,915.70 = 378,001.40/x
  3. Step 3: Cross multiply
    629,943.80x = 944,915.70 × 378,001.40
  4. Step 4: Simplify right side
    629,943.80x = 357,179,457,481.98
  5. Step 5: Solve for x
    x = 357,179,457,481.98/629,943.80
  6. Step 6: Final answer
    x = 567,002.10

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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.