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Finding the Fourth Proportional to 896,934, 1,237,778.60 and 489,032.52

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Solution

The fourth proportional to 896,934, 1,237,778.60 and 489,032.52 is: 674,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,934 : 1,237,778.60 = 489,032.52 : x
  2. Step 2: Convert to fraction form
    896,934/1,237,778.60 = 489,032.52/x
  3. Step 3: Cross multiply
    896,934x = 1,237,778.60 × 489,032.52
  4. Step 4: Simplify right side
    896,934x = 605,313,987,960.07
  5. Step 5: Solve for x
    x = 605,313,987,960.07/896,934
  6. Step 6: Final answer
    x = 674,870.16

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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.