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Finding the Fourth Proportional to 552,599,751.15, 762,931,812.78 and 351,769,941

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Solution

The fourth proportional to 552,599,751.15, 762,931,812.78 and 351,769,941 is: 485,661,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,599,751.15 : 762,931,812.78 = 351,769,941 : x
  2. Step 2: Convert to fraction form
    552,599,751.15/762,931,812.78 = 351,769,941/x
  3. Step 3: Cross multiply
    552,599,751.15x = 762,931,812.78 × 351,769,941
  4. Step 4: Simplify right side
    552,599,751.15x = 268,376,478,768,643,648
  5. Step 5: Solve for x
    x = 268,376,478,768,643,648/552,599,751.15
  6. Step 6: Final answer
    x = 485,661,599.03

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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.