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Finding the Fourth Proportional to 624,231.40, 936,671.10 and 291,807.40

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Solution

The fourth proportional to 624,231.40, 936,671.10 and 291,807.40 is: 437,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,231.40 : 936,671.10 = 291,807.40 : x
  2. Step 2: Convert to fraction form
    624,231.40/936,671.10 = 291,807.40/x
  3. Step 3: Cross multiply
    624,231.40x = 936,671.10 × 291,807.40
  4. Step 4: Simplify right side
    624,231.40x = 273,327,558,346.14
  5. Step 5: Solve for x
    x = 273,327,558,346.14/624,231.40
  6. Step 6: Final answer
    x = 437,862.56

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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.