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Finding the Fourth Proportional to 705,409.50, 973,472.25 and 383,125.89

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Solution

The fourth proportional to 705,409.50, 973,472.25 and 383,125.89 is: 528,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,409.50 : 973,472.25 = 383,125.89 : x
  2. Step 2: Convert to fraction form
    705,409.50/973,472.25 = 383,125.89/x
  3. Step 3: Cross multiply
    705,409.50x = 973,472.25 × 383,125.89
  4. Step 4: Simplify right side
    705,409.50x = 372,962,422,171.55
  5. Step 5: Solve for x
    x = 372,962,422,171.55/705,409.50
  6. Step 6: Final answer
    x = 528,717.61

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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.