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Finding the Fourth Proportional to 624,259.52, 861,477.12 and 352,384.64

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Solution

The fourth proportional to 624,259.52, 861,477.12 and 352,384.64 is: 486,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,259.52 : 861,477.12 = 352,384.64 : x
  2. Step 2: Convert to fraction form
    624,259.52/861,477.12 = 352,384.64/x
  3. Step 3: Cross multiply
    624,259.52x = 861,477.12 × 352,384.64
  4. Step 4: Simplify right side
    624,259.52x = 303,571,304,799.44
  5. Step 5: Solve for x
    x = 303,571,304,799.44/624,259.52
  6. Step 6: Final answer
    x = 486,290.23

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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.