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Finding the Fourth Proportional to 358,693,566.88, 495,002,609.04 and 212,029,497.76

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Solution

The fourth proportional to 358,693,566.88, 495,002,609.04 and 212,029,497.76 is: 292,603,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,693,566.88 : 495,002,609.04 = 212,029,497.76 : x
  2. Step 2: Convert to fraction form
    358,693,566.88/495,002,609.04 = 212,029,497.76/x
  3. Step 3: Cross multiply
    358,693,566.88x = 495,002,609.04 × 212,029,497.76
  4. Step 4: Simplify right side
    358,693,566.88x = 104,955,154,584,640,832
  5. Step 5: Solve for x
    x = 104,955,154,584,640,832/358,693,566.88
  6. Step 6: Final answer
    x = 292,603,950.21

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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.