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Finding the Fourth Proportional to 624,805,052.90, 862,237,973.18 and 356,916,347.46

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Solution

The fourth proportional to 624,805,052.90, 862,237,973.18 and 356,916,347.46 is: 492,548,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,805,052.90 : 862,237,973.18 = 356,916,347.46 : x
  2. Step 2: Convert to fraction form
    624,805,052.90/862,237,973.18 = 356,916,347.46/x
  3. Step 3: Cross multiply
    624,805,052.90x = 862,237,973.18 × 356,916,347.46
  4. Step 4: Simplify right side
    624,805,052.90x = 307,746,828,029,611,328
  5. Step 5: Solve for x
    x = 307,746,828,029,611,328/624,805,052.90
  6. Step 6: Final answer
    x = 492,548,558.31

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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.