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Finding the Fourth Proportional to 624,593.40, 861,933 and 338,106.12

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Solution

The fourth proportional to 624,593.40, 861,933 and 338,106.12 is: 466,583.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,593.40 : 861,933 = 338,106.12 : x
  2. Step 2: Convert to fraction form
    624,593.40/861,933 = 338,106.12/x
  3. Step 3: Cross multiply
    624,593.40x = 861,933 × 338,106.12
  4. Step 4: Simplify right side
    624,593.40x = 291,424,822,329.96
  5. Step 5: Solve for x
    x = 291,424,822,329.96/624,593.40
  6. Step 6: Final answer
    x = 466,583.26

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Double scale
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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.