Home / 629,856,795.40-944,785,193.10-619,653,128.20

Finding the Fourth Proportional to 629,856,795.40, 944,785,193.10 and 619,653,128.20

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Solution

The fourth proportional to 629,856,795.40, 944,785,193.10 and 619,653,128.20 is: 929,479,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,795.40 : 944,785,193.10 = 619,653,128.20 : x
  2. Step 2: Convert to fraction form
    629,856,795.40/944,785,193.10 = 619,653,128.20/x
  3. Step 3: Cross multiply
    629,856,795.40x = 944,785,193.10 × 619,653,128.20
  4. Step 4: Simplify right side
    629,856,795.40x = 585,439,100,381,456,128
  5. Step 5: Solve for x
    x = 585,439,100,381,456,128/629,856,795.40
  6. Step 6: Final answer
    x = 929,479,692.30

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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.