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Finding the Fourth Proportional to 619,285.36, 854,597.64 and 343,641.28

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Solution

The fourth proportional to 619,285.36, 854,597.64 and 343,641.28 is: 474,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,285.36 : 854,597.64 = 343,641.28 : x
  2. Step 2: Convert to fraction form
    619,285.36/854,597.64 = 343,641.28/x
  3. Step 3: Cross multiply
    619,285.36x = 854,597.64 × 343,641.28
  4. Step 4: Simplify right side
    619,285.36x = 293,675,026,894.58
  5. Step 5: Solve for x
    x = 293,675,026,894.58/619,285.36
  6. Step 6: Final answer
    x = 474,216.00

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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.