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Finding the Fourth Proportional to 706,460.16, 974,940.62 and 404,712.48

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Solution

The fourth proportional to 706,460.16, 974,940.62 and 404,712.48 is: 558,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,460.16 : 974,940.62 = 404,712.48 : x
  2. Step 2: Convert to fraction form
    706,460.16/974,940.62 = 404,712.48/x
  3. Step 3: Cross multiply
    706,460.16x = 974,940.62 × 404,712.48
  4. Step 4: Simplify right side
    706,460.16x = 394,570,634,149.38
  5. Step 5: Solve for x
    x = 394,570,634,149.38/706,460.16
  6. Step 6: Final answer
    x = 558,517.88

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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.