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Finding the Fourth Proportional to 590,984.91, 886,564.85 and 216,978.75

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Solution

The fourth proportional to 590,984.91, 886,564.85 and 216,978.75 is: 325,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,984.91 : 886,564.85 = 216,978.75 : x
  2. Step 2: Convert to fraction form
    590,984.91/886,564.85 = 216,978.75/x
  3. Step 3: Cross multiply
    590,984.91x = 886,564.85 × 216,978.75
  4. Step 4: Simplify right side
    590,984.91x = 192,365,731,862.04
  5. Step 5: Solve for x
    x = 192,365,731,862.04/590,984.91
  6. Step 6: Final answer
    x = 325,500.24

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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.