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Finding the Fourth Proportional to 478,503.37, 717,077.94 and 265,365.01

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Solution

The fourth proportional to 478,503.37, 717,077.94 and 265,365.01 is: 397,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,503.37 : 717,077.94 = 265,365.01 : x
  2. Step 2: Convert to fraction form
    478,503.37/717,077.94 = 265,365.01/x
  3. Step 3: Cross multiply
    478,503.37x = 717,077.94 × 265,365.01
  4. Step 4: Simplify right side
    478,503.37x = 190,287,394,718.88
  5. Step 5: Solve for x
    x = 190,287,394,718.88/478,503.37
  6. Step 6: Final answer
    x = 397,672.01

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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.