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Finding the Fourth Proportional to 583,660.55, 805,314.52 and 354,212.48

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Solution

The fourth proportional to 583,660.55, 805,314.52 and 354,212.48 is: 488,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,660.55 : 805,314.52 = 354,212.48 : x
  2. Step 2: Convert to fraction form
    583,660.55/805,314.52 = 354,212.48/x
  3. Step 3: Cross multiply
    583,660.55x = 805,314.52 × 354,212.48
  4. Step 4: Simplify right side
    583,660.55x = 285,252,453,309.21
  5. Step 5: Solve for x
    x = 285,252,453,309.21/583,660.55
  6. Step 6: Final answer
    x = 488,730.06

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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.