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Finding the Fourth Proportional to 607,048.60, 910,828.06 and 326,237.80

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Solution

The fourth proportional to 607,048.60, 910,828.06 and 326,237.80 is: 489,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,048.60 : 910,828.06 = 326,237.80 : x
  2. Step 2: Convert to fraction form
    607,048.60/910,828.06 = 326,237.80/x
  3. Step 3: Cross multiply
    607,048.60x = 910,828.06 × 326,237.80
  4. Step 4: Simplify right side
    607,048.60x = 297,146,542,472.67
  5. Step 5: Solve for x
    x = 297,146,542,472.67/607,048.60
  6. Step 6: Final answer
    x = 489,493.83

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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.