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Finding the Fourth Proportional to 494,490.01, 742,340.54 and 326,151.13

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Solution

The fourth proportional to 494,490.01, 742,340.54 and 326,151.13 is: 489,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,490.01 : 742,340.54 = 326,151.13 : x
  2. Step 2: Convert to fraction form
    494,490.01/742,340.54 = 326,151.13/x
  3. Step 3: Cross multiply
    494,490.01x = 742,340.54 × 326,151.13
  4. Step 4: Simplify right side
    494,490.01x = 242,115,205,965.81
  5. Step 5: Solve for x
    x = 242,115,205,965.81/494,490.01
  6. Step 6: Final answer
    x = 489,626.08

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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.