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Finding the Fourth Proportional to 604,327.90, 905,507.70 and 444,895.60

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Solution

The fourth proportional to 604,327.90, 905,507.70 and 444,895.60 is: 666,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,327.90 : 905,507.70 = 444,895.60 : x
  2. Step 2: Convert to fraction form
    604,327.90/905,507.70 = 444,895.60/x
  3. Step 3: Cross multiply
    604,327.90x = 905,507.70 × 444,895.60
  4. Step 4: Simplify right side
    604,327.90x = 402,856,391,496.12
  5. Step 5: Solve for x
    x = 402,856,391,496.12/604,327.90
  6. Step 6: Final answer
    x = 666,618.89

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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.