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Finding the Fourth Proportional to 585,601, 808,129.38 and 317,329

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Solution

The fourth proportional to 585,601, 808,129.38 and 317,329 is: 437,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,601 : 808,129.38 = 317,329 : x
  2. Step 2: Convert to fraction form
    585,601/808,129.38 = 317,329/x
  3. Step 3: Cross multiply
    585,601x = 808,129.38 × 317,329
  4. Step 4: Simplify right side
    585,601x = 256,442,888,026.02
  5. Step 5: Solve for x
    x = 256,442,888,026.02/585,601
  6. Step 6: Final answer
    x = 437,914.02

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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.