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Finding the Fourth Proportional to 624,168.60, 933,920.10 and 414,216.60

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Solution

The fourth proportional to 624,168.60, 933,920.10 and 414,216.60 is: 619,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,168.60 : 933,920.10 = 414,216.60 : x
  2. Step 2: Convert to fraction form
    624,168.60/933,920.10 = 414,216.60/x
  3. Step 3: Cross multiply
    624,168.60x = 933,920.10 × 414,216.60
  4. Step 4: Simplify right side
    624,168.60x = 386,845,208,493.66
  5. Step 5: Solve for x
    x = 386,845,208,493.66/624,168.60
  6. Step 6: Final answer
    x = 619,776.79

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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.