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Finding the Fourth Proportional to 622,353,965.10, 933,530,947.65 and 586,641,129.90

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Solution

The fourth proportional to 622,353,965.10, 933,530,947.65 and 586,641,129.90 is: 879,961,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,353,965.10 : 933,530,947.65 = 586,641,129.90 : x
  2. Step 2: Convert to fraction form
    622,353,965.10/933,530,947.65 = 586,641,129.90/x
  3. Step 3: Cross multiply
    622,353,965.10x = 933,530,947.65 × 586,641,129.90
  4. Step 4: Simplify right side
    622,353,965.10x = 547,647,649,926,013,696
  5. Step 5: Solve for x
    x = 547,647,649,926,013,696/622,353,965.10
  6. Step 6: Final answer
    x = 879,961,694.85

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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.