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Finding the Fourth Proportional to 573,409.07, 860,125.45 and 208,658.17

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Solution

The fourth proportional to 573,409.07, 860,125.45 and 208,658.17 is: 312,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,409.07 : 860,125.45 = 208,658.17 : x
  2. Step 2: Convert to fraction form
    573,409.07/860,125.45 = 208,658.17/x
  3. Step 3: Cross multiply
    573,409.07x = 860,125.45 × 208,658.17
  4. Step 4: Simplify right side
    573,409.07x = 179,472,201,324.14
  5. Step 5: Solve for x
    x = 179,472,201,324.14/573,409.07
  6. Step 6: Final answer
    x = 312,991.57

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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.