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Finding the Fourth Proportional to 368,950.85, 509,155.01 and 207,790.82

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Solution

The fourth proportional to 368,950.85, 509,155.01 and 207,790.82 is: 286,752.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,950.85 : 509,155.01 = 207,790.82 : x
  2. Step 2: Convert to fraction form
    368,950.85/509,155.01 = 207,790.82/x
  3. Step 3: Cross multiply
    368,950.85x = 509,155.01 × 207,790.82
  4. Step 4: Simplify right side
    368,950.85x = 105,797,737,307.65
  5. Step 5: Solve for x
    x = 105,797,737,307.65/368,950.85
  6. Step 6: Final answer
    x = 286,752.93

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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.