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Finding the Fourth Proportional to 604,523.64, 905,540.58 and 354,603

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Solution

The fourth proportional to 604,523.64, 905,540.58 and 354,603 is: 531,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,523.64 : 905,540.58 = 354,603 : x
  2. Step 2: Convert to fraction form
    604,523.64/905,540.58 = 354,603/x
  3. Step 3: Cross multiply
    604,523.64x = 905,540.58 × 354,603
  4. Step 4: Simplify right side
    604,523.64x = 321,107,406,289.74
  5. Step 5: Solve for x
    x = 321,107,406,289.74/604,523.64
  6. Step 6: Final answer
    x = 531,174.28

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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.