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Finding the Fourth Proportional to 489,194.40, 732,625.20 and 489,194.40

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Solution

The fourth proportional to 489,194.40, 732,625.20 and 489,194.40 is: 732,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,194.40 : 732,625.20 = 489,194.40 : x
  2. Step 2: Convert to fraction form
    489,194.40/732,625.20 = 489,194.40/x
  3. Step 3: Cross multiply
    489,194.40x = 732,625.20 × 489,194.40
  4. Step 4: Simplify right side
    489,194.40x = 358,396,145,138.88
  5. Step 5: Solve for x
    x = 358,396,145,138.88/489,194.40
  6. Step 6: Final answer
    x = 732,625.20

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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.