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Finding the Fourth Proportional to 573,179.67, 790,154.28 and 400,561.74

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Solution

The fourth proportional to 573,179.67, 790,154.28 and 400,561.74 is: 552,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,179.67 : 790,154.28 = 400,561.74 : x
  2. Step 2: Convert to fraction form
    573,179.67/790,154.28 = 400,561.74/x
  3. Step 3: Cross multiply
    573,179.67x = 790,154.28 × 400,561.74
  4. Step 4: Simplify right side
    573,179.67x = 316,505,573,265.25
  5. Step 5: Solve for x
    x = 316,505,573,265.25/573,179.67
  6. Step 6: Final answer
    x = 552,192.60

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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.