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Finding the Fourth Proportional to 624,987.72, 937,332.90 and 269,807.40

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Solution

The fourth proportional to 624,987.72, 937,332.90 and 269,807.40 is: 404,646.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,987.72 : 937,332.90 = 269,807.40 : x
  2. Step 2: Convert to fraction form
    624,987.72/937,332.90 = 269,807.40/x
  3. Step 3: Cross multiply
    624,987.72x = 937,332.90 × 269,807.40
  4. Step 4: Simplify right side
    624,987.72x = 252,899,352,683.46
  5. Step 5: Solve for x
    x = 252,899,352,683.46/624,987.72
  6. Step 6: Final answer
    x = 404,646.91

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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.