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Finding the Fourth Proportional to 536,969.90, 741,012.44 and 399,762.30

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Solution

The fourth proportional to 536,969.90, 741,012.44 and 399,762.30 is: 551,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,969.90 : 741,012.44 = 399,762.30 : x
  2. Step 2: Convert to fraction form
    536,969.90/741,012.44 = 399,762.30/x
  3. Step 3: Cross multiply
    536,969.90x = 741,012.44 × 399,762.30
  4. Step 4: Simplify right side
    536,969.90x = 296,228,836,683.35
  5. Step 5: Solve for x
    x = 296,228,836,683.35/536,969.90
  6. Step 6: Final answer
    x = 551,667.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.