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Finding the Fourth Proportional to 585,449.44, 807,630.96 and 404,346.40

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Solution

The fourth proportional to 585,449.44, 807,630.96 and 404,346.40 is: 557,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,449.44 : 807,630.96 = 404,346.40 : x
  2. Step 2: Convert to fraction form
    585,449.44/807,630.96 = 404,346.40/x
  3. Step 3: Cross multiply
    585,449.44x = 807,630.96 × 404,346.40
  4. Step 4: Simplify right side
    585,449.44x = 326,562,671,204.54
  5. Step 5: Solve for x
    x = 326,562,671,204.54/585,449.44
  6. Step 6: Final answer
    x = 557,798.25

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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.