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Finding the Fourth Proportional to 661,901.37, 913,427.87 and 360,097.53

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Solution

The fourth proportional to 661,901.37, 913,427.87 and 360,097.53 is: 496,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,901.37 : 913,427.87 = 360,097.53 : x
  2. Step 2: Convert to fraction form
    661,901.37/913,427.87 = 360,097.53/x
  3. Step 3: Cross multiply
    661,901.37x = 913,427.87 × 360,097.53
  4. Step 4: Simplify right side
    661,901.37x = 328,923,118,019.67
  5. Step 5: Solve for x
    x = 328,923,118,019.67/661,901.37
  6. Step 6: Final answer
    x = 496,936.75

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Why These Related Problems?

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