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Finding the Fourth Proportional to 952,697,726, 1,428,888,086.23 and 288,553,842.55

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Solution

The fourth proportional to 952,697,726, 1,428,888,086.23 and 288,553,842.55 is: 432,782,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    952,697,726 : 1,428,888,086.23 = 288,553,842.55 : x
  2. Step 2: Convert to fraction form
    952,697,726/1,428,888,086.23 = 288,553,842.55/x
  3. Step 3: Cross multiply
    952,697,726x = 1,428,888,086.23 × 288,553,842.55
  4. Step 4: Simplify right side
    952,697,726x = 412,311,147,852,731,456
  5. Step 5: Solve for x
    x = 412,311,147,852,731,456/952,697,726
  6. Step 6: Final answer
    x = 432,782,756.38

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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.