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Finding the Fourth Proportional to 622,872,920.80, 934,309,381.20 and 622,872,920.80

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Solution

The fourth proportional to 622,872,920.80, 934,309,381.20 and 622,872,920.80 is: 934,309,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,872,920.80 : 934,309,381.20 = 622,872,920.80 : x
  2. Step 2: Convert to fraction form
    622,872,920.80/934,309,381.20 = 622,872,920.80/x
  3. Step 3: Cross multiply
    622,872,920.80x = 934,309,381.20 × 622,872,920.80
  4. Step 4: Simplify right side
    622,872,920.80x = 581,956,013,198,884,608
  5. Step 5: Solve for x
    x = 581,956,013,198,884,608/622,872,920.80
  6. Step 6: Final answer
    x = 934,309,381.20

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Double scale
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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.