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Finding the Fourth Proportional to 629,856,790.65, 944,785,185.98 and 626,030,415.45

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Solution

The fourth proportional to 629,856,790.65, 944,785,185.98 and 626,030,415.45 is: 939,045,623.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,790.65 : 944,785,185.98 = 626,030,415.45 : x
  2. Step 2: Convert to fraction form
    629,856,790.65/944,785,185.98 = 626,030,415.45/x
  3. Step 3: Cross multiply
    629,856,790.65x = 944,785,185.98 × 626,030,415.45
  4. Step 4: Simplify right side
    629,856,790.65x = 591,464,262,486,934,784
  5. Step 5: Solve for x
    x = 591,464,262,486,934,784/629,856,790.65
  6. Step 6: Final answer
    x = 939,045,623.18

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Double scale
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Similar ratio
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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.