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Finding the Fourth Proportional to 665,560.02, 918,472.86 and 363,754.02

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Solution

The fourth proportional to 665,560.02, 918,472.86 and 363,754.02 is: 501,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,560.02 : 918,472.86 = 363,754.02 : x
  2. Step 2: Convert to fraction form
    665,560.02/918,472.86 = 363,754.02/x
  3. Step 3: Cross multiply
    665,560.02x = 918,472.86 × 363,754.02
  4. Step 4: Simplify right side
    665,560.02x = 334,098,195,085.90
  5. Step 5: Solve for x
    x = 334,098,195,085.90/665,560.02
  6. Step 6: Final answer
    x = 501,980.57

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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.