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Finding the Fourth Proportional to 573,730.70, 791,915.13 and 382,743.63

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Solution

The fourth proportional to 573,730.70, 791,915.13 and 382,743.63 is: 528,297.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,730.70 : 791,915.13 = 382,743.63 : x
  2. Step 2: Convert to fraction form
    573,730.70/791,915.13 = 382,743.63/x
  3. Step 3: Cross multiply
    573,730.70x = 791,915.13 × 382,743.63
  4. Step 4: Simplify right side
    573,730.70x = 303,100,471,508.12
  5. Step 5: Solve for x
    x = 303,100,471,508.12/573,730.70
  6. Step 6: Final answer
    x = 528,297.46

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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.