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Finding the Fourth Proportional to 590,985.80, 885,960.30 and 354,422.60

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Solution

The fourth proportional to 590,985.80, 885,960.30 and 354,422.60 is: 531,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,985.80 : 885,960.30 = 354,422.60 : x
  2. Step 2: Convert to fraction form
    590,985.80/885,960.30 = 354,422.60/x
  3. Step 3: Cross multiply
    590,985.80x = 885,960.30 × 354,422.60
  4. Step 4: Simplify right side
    590,985.80x = 314,004,353,022.78
  5. Step 5: Solve for x
    x = 314,004,353,022.78/590,985.80
  6. Step 6: Final answer
    x = 531,323.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.