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Finding the Fourth Proportional to 585,978.08, 808,645.28 and 331,338.32

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Solution

The fourth proportional to 585,978.08, 808,645.28 and 331,338.32 is: 457,244.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,978.08 : 808,645.28 = 331,338.32 : x
  2. Step 2: Convert to fraction form
    585,978.08/808,645.28 = 331,338.32/x
  3. Step 3: Cross multiply
    585,978.08x = 808,645.28 × 331,338.32
  4. Step 4: Simplify right side
    585,978.08x = 267,935,168,551.13
  5. Step 5: Solve for x
    x = 267,935,168,551.13/585,978.08
  6. Step 6: Final answer
    x = 457,244.35

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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.