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Finding the Fourth Proportional to 624,227.70, 861,437.22 and 352,307.07

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Solution

The fourth proportional to 624,227.70, 861,437.22 and 352,307.07 is: 486,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,227.70 : 861,437.22 = 352,307.07 : x
  2. Step 2: Convert to fraction form
    624,227.70/861,437.22 = 352,307.07/x
  3. Step 3: Cross multiply
    624,227.70x = 861,437.22 × 352,307.07
  4. Step 4: Simplify right side
    624,227.70x = 303,490,422,967.15
  5. Step 5: Solve for x
    x = 303,490,422,967.15/624,227.70
  6. Step 6: Final answer
    x = 486,185.45

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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.