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Finding the Fourth Proportional to 770,064.52, 1,062,262.50 and 447,739

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Solution

The fourth proportional to 770,064.52, 1,062,262.50 and 447,739 is: 617,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,064.52 : 1,062,262.50 = 447,739 : x
  2. Step 2: Convert to fraction form
    770,064.52/1,062,262.50 = 447,739/x
  3. Step 3: Cross multiply
    770,064.52x = 1,062,262.50 × 447,739
  4. Step 4: Simplify right side
    770,064.52x = 475,616,349,487.50
  5. Step 5: Solve for x
    x = 475,616,349,487.50/770,064.52
  6. Step 6: Final answer
    x = 617,631.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.