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Finding the Fourth Proportional to 595,387.40, 821,619.06 and 353,670.44

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Solution

The fourth proportional to 595,387.40, 821,619.06 and 353,670.44 is: 488,055.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,387.40 : 821,619.06 = 353,670.44 : x
  2. Step 2: Convert to fraction form
    595,387.40/821,619.06 = 353,670.44/x
  3. Step 3: Cross multiply
    595,387.40x = 821,619.06 × 353,670.44
  4. Step 4: Simplify right side
    595,387.40x = 290,582,374,462.59
  5. Step 5: Solve for x
    x = 290,582,374,462.59/595,387.40
  6. Step 6: Final answer
    x = 488,055.97

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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.