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Finding the Fourth Proportional to 585,970.72, 808,655.52 and 331,360

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Solution

The fourth proportional to 585,970.72, 808,655.52 and 331,360 is: 457,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,970.72 : 808,655.52 = 331,360 : x
  2. Step 2: Convert to fraction form
    585,970.72/808,655.52 = 331,360/x
  3. Step 3: Cross multiply
    585,970.72x = 808,655.52 × 331,360
  4. Step 4: Simplify right side
    585,970.72x = 267,956,093,107.20
  5. Step 5: Solve for x
    x = 267,956,093,107.20/585,970.72
  6. Step 6: Final answer
    x = 457,285.81

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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.