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Finding the Fourth Proportional to 489,372.90, 733,886.55 and 173,840.10

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Solution

The fourth proportional to 489,372.90, 733,886.55 and 173,840.10 is: 260,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,372.90 : 733,886.55 = 173,840.10 : x
  2. Step 2: Convert to fraction form
    489,372.90/733,886.55 = 173,840.10/x
  3. Step 3: Cross multiply
    489,372.90x = 733,886.55 × 173,840.10
  4. Step 4: Simplify right side
    489,372.90x = 127,578,911,240.66
  5. Step 5: Solve for x
    x = 127,578,911,240.66/489,372.90
  6. Step 6: Final answer
    x = 260,698.77

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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.