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Finding the Fourth Proportional to 624,938.36, 862,417.14 and 338,457.56

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Solution

The fourth proportional to 624,938.36, 862,417.14 and 338,457.56 is: 467,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,938.36 : 862,417.14 = 338,457.56 : x
  2. Step 2: Convert to fraction form
    624,938.36/862,417.14 = 338,457.56/x
  3. Step 3: Cross multiply
    624,938.36x = 862,417.14 × 338,457.56
  4. Step 4: Simplify right side
    624,938.36x = 291,891,600,906.58
  5. Step 5: Solve for x
    x = 291,891,600,906.58/624,938.36
  6. Step 6: Final answer
    x = 467,072.63

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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.