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Finding the Fourth Proportional to 624,181.32, 861,369.93 and 352,306.24

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Solution

The fourth proportional to 624,181.32, 861,369.93 and 352,306.24 is: 486,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,181.32 : 861,369.93 = 352,306.24 : x
  2. Step 2: Convert to fraction form
    624,181.32/861,369.93 = 352,306.24/x
  3. Step 3: Cross multiply
    624,181.32x = 861,369.93 × 352,306.24
  4. Step 4: Simplify right side
    624,181.32x = 303,465,999,133.94
  5. Step 5: Solve for x
    x = 303,465,999,133.94/624,181.32
  6. Step 6: Final answer
    x = 486,182.44

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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.