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Finding the Fourth Proportional to 517,282.14, 714,177.30 and 354,211.51

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Solution

The fourth proportional to 517,282.14, 714,177.30 and 354,211.51 is: 489,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,282.14 : 714,177.30 = 354,211.51 : x
  2. Step 2: Convert to fraction form
    517,282.14/714,177.30 = 354,211.51/x
  3. Step 3: Cross multiply
    517,282.14x = 714,177.30 × 354,211.51
  4. Step 4: Simplify right side
    517,282.14x = 252,969,819,840.72
  5. Step 5: Solve for x
    x = 252,969,819,840.72/517,282.14
  6. Step 6: Final answer
    x = 489,036.45

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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.