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Finding the Fourth Proportional to 624,805,051.77, 862,237,971.63 and 356,916,346.34

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Solution

The fourth proportional to 624,805,051.77, 862,237,971.63 and 356,916,346.34 is: 492,548,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,805,051.77 : 862,237,971.63 = 356,916,346.34 : x
  2. Step 2: Convert to fraction form
    624,805,051.77/862,237,971.63 = 356,916,346.34/x
  3. Step 3: Cross multiply
    624,805,051.77x = 862,237,971.63 × 356,916,346.34
  4. Step 4: Simplify right side
    624,805,051.77x = 307,746,826,505,480,960
  5. Step 5: Solve for x
    x = 307,746,826,505,480,960/624,805,051.77
  6. Step 6: Final answer
    x = 492,548,556.76

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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.