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Finding the Fourth Proportional to 704,679.60, 1,057,054.92 and 199,276.92

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Solution

The fourth proportional to 704,679.60, 1,057,054.92 and 199,276.92 is: 298,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,679.60 : 1,057,054.92 = 199,276.92 : x
  2. Step 2: Convert to fraction form
    704,679.60/1,057,054.92 = 199,276.92/x
  3. Step 3: Cross multiply
    704,679.60x = 1,057,054.92 × 199,276.92
  4. Step 4: Simplify right side
    704,679.60x = 210,646,648,728.45
  5. Step 5: Solve for x
    x = 210,646,648,728.45/704,679.60
  6. Step 6: Final answer
    x = 298,925.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.