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Finding the Fourth Proportional to 702,365,600.76, 969,324,050.59 and 389,198,048.28

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Solution

The fourth proportional to 702,365,600.76, 969,324,050.59 and 389,198,048.28 is: 537,126,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,365,600.76 : 969,324,050.59 = 389,198,048.28 : x
  2. Step 2: Convert to fraction form
    702,365,600.76/969,324,050.59 = 389,198,048.28/x
  3. Step 3: Cross multiply
    702,365,600.76x = 969,324,050.59 × 389,198,048.28
  4. Step 4: Simplify right side
    702,365,600.76x = 377,259,028,635,884,032
  5. Step 5: Solve for x
    x = 377,259,028,635,884,032/702,365,600.76
  6. Step 6: Final answer
    x = 537,126,288.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.