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Finding the Fourth Proportional to 595,715.20, 893,572.80 and 258,917.20

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Solution

The fourth proportional to 595,715.20, 893,572.80 and 258,917.20 is: 388,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,715.20 : 893,572.80 = 258,917.20 : x
  2. Step 2: Convert to fraction form
    595,715.20/893,572.80 = 258,917.20/x
  3. Step 3: Cross multiply
    595,715.20x = 893,572.80 × 258,917.20
  4. Step 4: Simplify right side
    595,715.20x = 231,361,367,372.16
  5. Step 5: Solve for x
    x = 231,361,367,372.16/595,715.20
  6. Step 6: Final answer
    x = 388,375.80

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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.