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Finding the Fourth Proportional to 552,541,964.16, 762,503,233.86 and 305,018,004

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Solution

The fourth proportional to 552,541,964.16, 762,503,233.86 and 305,018,004 is: 420,922,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,541,964.16 : 762,503,233.86 = 305,018,004 : x
  2. Step 2: Convert to fraction form
    552,541,964.16/762,503,233.86 = 305,018,004/x
  3. Step 3: Cross multiply
    552,541,964.16x = 762,503,233.86 × 305,018,004
  4. Step 4: Simplify right side
    552,541,964.16x = 232,577,214,435,522,432
  5. Step 5: Solve for x
    x = 232,577,214,435,522,432/552,541,964.16
  6. Step 6: Final answer
    x = 420,922,263.87

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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.