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Finding the Fourth Proportional to 585,449.94, 807,631.65 and 404,346.90

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Solution

The fourth proportional to 585,449.94, 807,631.65 and 404,346.90 is: 557,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,449.94 : 807,631.65 = 404,346.90 : x
  2. Step 2: Convert to fraction form
    585,449.94/807,631.65 = 404,346.90/x
  3. Step 3: Cross multiply
    585,449.94x = 807,631.65 × 404,346.90
  4. Step 4: Simplify right side
    585,449.94x = 326,563,354,019.39
  5. Step 5: Solve for x
    x = 326,563,354,019.39/585,449.94
  6. Step 6: Final answer
    x = 557,798.94

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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.