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Finding the Fourth Proportional to 547,392,338.88, 821,020,031.40 and 178,896,463.88

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Solution

The fourth proportional to 547,392,338.88, 821,020,031.40 and 178,896,463.88 is: 268,322,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,392,338.88 : 821,020,031.40 = 178,896,463.88 : x
  2. Step 2: Convert to fraction form
    547,392,338.88/821,020,031.40 = 178,896,463.88/x
  3. Step 3: Cross multiply
    547,392,338.88x = 821,020,031.40 × 178,896,463.88
  4. Step 4: Simplify right side
    547,392,338.88x = 146,877,580,392,106,560
  5. Step 5: Solve for x
    x = 146,877,580,392,106,560/547,392,338.88
  6. Step 6: Final answer
    x = 268,322,316.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.