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Finding the Fourth Proportional to 626,527.71, 864,402.44 and 354,568.59

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Solution

The fourth proportional to 626,527.71, 864,402.44 and 354,568.59 is: 489,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,527.71 : 864,402.44 = 354,568.59 : x
  2. Step 2: Convert to fraction form
    626,527.71/864,402.44 = 354,568.59/x
  3. Step 3: Cross multiply
    626,527.71x = 864,402.44 × 354,568.59
  4. Step 4: Simplify right side
    626,527.71x = 306,489,952,570.52
  5. Step 5: Solve for x
    x = 306,489,952,570.52/626,527.71
  6. Step 6: Final answer
    x = 489,188.18

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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.