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Finding the Fourth Proportional to 624,173.61, 861,954.47 and 590,169.20

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Solution

The fourth proportional to 624,173.61, 861,954.47 and 590,169.20 is: 814,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,173.61 : 861,954.47 = 590,169.20 : x
  2. Step 2: Convert to fraction form
    624,173.61/861,954.47 = 590,169.20/x
  3. Step 3: Cross multiply
    624,173.61x = 861,954.47 × 590,169.20
  4. Step 4: Simplify right side
    624,173.61x = 508,698,979,996.32
  5. Step 5: Solve for x
    x = 508,698,979,996.32/624,173.61
  6. Step 6: Final answer
    x = 814,995.98

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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.