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Finding the Fourth Proportional to 610,243.47, 842,185.55 and 338,396.54

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Solution

The fourth proportional to 610,243.47, 842,185.55 and 338,396.54 is: 467,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,243.47 : 842,185.55 = 338,396.54 : x
  2. Step 2: Convert to fraction form
    610,243.47/842,185.55 = 338,396.54/x
  3. Step 3: Cross multiply
    610,243.47x = 842,185.55 × 338,396.54
  4. Step 4: Simplify right side
    610,243.47x = 284,992,672,793.06
  5. Step 5: Solve for x
    x = 284,992,672,793.06/610,243.47
  6. Step 6: Final answer
    x = 467,014.70

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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.