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Finding the Fourth Proportional to 489,240.70, 733,861.05 and 489,240.70

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Solution

The fourth proportional to 489,240.70, 733,861.05 and 489,240.70 is: 733,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,240.70 : 733,861.05 = 489,240.70 : x
  2. Step 2: Convert to fraction form
    489,240.70/733,861.05 = 489,240.70/x
  3. Step 3: Cross multiply
    489,240.70x = 733,861.05 × 489,240.70
  4. Step 4: Simplify right side
    489,240.70x = 359,034,693,804.74
  5. Step 5: Solve for x
    x = 359,034,693,804.74/489,240.70
  6. Step 6: Final answer
    x = 733,861.05

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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.