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Finding the Fourth Proportional to 624,140.40, 936,534.60 and 291,716.40

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Solution

The fourth proportional to 624,140.40, 936,534.60 and 291,716.40 is: 437,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,140.40 : 936,534.60 = 291,716.40 : x
  2. Step 2: Convert to fraction form
    624,140.40/936,534.60 = 291,716.40/x
  3. Step 3: Cross multiply
    624,140.40x = 936,534.60 × 291,716.40
  4. Step 4: Simplify right side
    624,140.40x = 273,202,501,987.44
  5. Step 5: Solve for x
    x = 273,202,501,987.44/624,140.40
  6. Step 6: Final answer
    x = 437,726.03

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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.