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Finding the Fourth Proportional to 494,906.10, 742,359.15 and 370,490.10

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Solution

The fourth proportional to 494,906.10, 742,359.15 and 370,490.10 is: 555,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,906.10 : 742,359.15 = 370,490.10 : x
  2. Step 2: Convert to fraction form
    494,906.10/742,359.15 = 370,490.10/x
  3. Step 3: Cross multiply
    494,906.10x = 742,359.15 × 370,490.10
  4. Step 4: Simplify right side
    494,906.10x = 275,036,715,719.42
  5. Step 5: Solve for x
    x = 275,036,715,719.42/494,906.10
  6. Step 6: Final answer
    x = 555,735.15

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Double scale
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Similar ratio
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1.5x scale

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.