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Finding the Fourth Proportional to 613,376,363.70, 920,064,545.55 and 368,488,350.90

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Solution

The fourth proportional to 613,376,363.70, 920,064,545.55 and 368,488,350.90 is: 552,732,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,376,363.70 : 920,064,545.55 = 368,488,350.90 : x
  2. Step 2: Convert to fraction form
    613,376,363.70/920,064,545.55 = 368,488,350.90/x
  3. Step 3: Cross multiply
    613,376,363.70x = 920,064,545.55 × 368,488,350.90
  4. Step 4: Simplify right side
    613,376,363.70x = 339,033,067,111,277,376
  5. Step 5: Solve for x
    x = 339,033,067,111,277,376/613,376,363.70
  6. Step 6: Final answer
    x = 552,732,526.35

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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.