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Finding the Fourth Proportional to 585,611.52, 808,144.16 and 317,339.52

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Solution

The fourth proportional to 585,611.52, 808,144.16 and 317,339.52 is: 437,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,611.52 : 808,144.16 = 317,339.52 : x
  2. Step 2: Convert to fraction form
    585,611.52/808,144.16 = 317,339.52/x
  3. Step 3: Cross multiply
    585,611.52x = 808,144.16 × 317,339.52
  4. Step 4: Simplify right side
    585,611.52x = 256,456,079,825.20
  5. Step 5: Solve for x
    x = 256,456,079,825.20/585,611.52
  6. Step 6: Final answer
    x = 437,928.68

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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.