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Finding the Fourth Proportional to 257,996,864.70, 362,215,977.30 and 257,996,864.70

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Solution

The fourth proportional to 257,996,864.70, 362,215,977.30 and 257,996,864.70 is: 362,215,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,996,864.70 : 362,215,977.30 = 257,996,864.70 : x
  2. Step 2: Convert to fraction form
    257,996,864.70/362,215,977.30 = 257,996,864.70/x
  3. Step 3: Cross multiply
    257,996,864.70x = 362,215,977.30 × 257,996,864.70
  4. Step 4: Simplify right side
    257,996,864.70x = 93,450,586,487,646,368
  5. Step 5: Solve for x
    x = 93,450,586,487,646,368/257,996,864.70
  6. Step 6: Final answer
    x = 362,215,977.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.