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Finding the Fourth Proportional to 602,115,281.80, 903,172,922.70 and 219,113,067.40

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Solution

The fourth proportional to 602,115,281.80, 903,172,922.70 and 219,113,067.40 is: 328,669,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,115,281.80 : 903,172,922.70 = 219,113,067.40 : x
  2. Step 2: Convert to fraction form
    602,115,281.80/903,172,922.70 = 219,113,067.40/x
  3. Step 3: Cross multiply
    602,115,281.80x = 903,172,922.70 × 219,113,067.40
  4. Step 4: Simplify right side
    602,115,281.80x = 197,896,989,485,420,096
  5. Step 5: Solve for x
    x = 197,896,989,485,420,096/602,115,281.80
  6. Step 6: Final answer
    x = 328,669,601.10

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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.