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Finding the Fourth Proportional to 577,937,478.50, 797,553,720.38 and 313,619,471.54

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Solution

The fourth proportional to 577,937,478.50, 797,553,720.38 and 313,619,471.54 is: 432,794,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,937,478.50 : 797,553,720.38 = 313,619,471.54 : x
  2. Step 2: Convert to fraction form
    577,937,478.50/797,553,720.38 = 313,619,471.54/x
  3. Step 3: Cross multiply
    577,937,478.50x = 797,553,720.38 × 313,619,471.54
  4. Step 4: Simplify right side
    577,937,478.50x = 250,128,376,310,123,648
  5. Step 5: Solve for x
    x = 250,128,376,310,123,648/577,937,478.50
  6. Step 6: Final answer
    x = 432,794,870.75

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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.