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Finding the Fourth Proportional to 604,312.90, 905,485.20 and 444,880.60

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Solution

The fourth proportional to 604,312.90, 905,485.20 and 444,880.60 is: 666,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,312.90 : 905,485.20 = 444,880.60 : x
  2. Step 2: Convert to fraction form
    604,312.90/905,485.20 = 444,880.60/x
  3. Step 3: Cross multiply
    604,312.90x = 905,485.20 × 444,880.60
  4. Step 4: Simplify right side
    604,312.90x = 402,832,799,067.12
  5. Step 5: Solve for x
    x = 402,832,799,067.12/604,312.90
  6. Step 6: Final answer
    x = 666,596.39

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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.