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Finding the Fourth Proportional to 579,054.64, 868,415.40 and 199,876.84

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Solution

The fourth proportional to 579,054.64, 868,415.40 and 199,876.84 is: 299,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,054.64 : 868,415.40 = 199,876.84 : x
  2. Step 2: Convert to fraction form
    579,054.64/868,415.40 = 199,876.84/x
  3. Step 3: Cross multiply
    579,054.64x = 868,415.40 × 199,876.84
  4. Step 4: Simplify right side
    579,054.64x = 173,576,125,959.34
  5. Step 5: Solve for x
    x = 173,576,125,959.34/579,054.64
  6. Step 6: Final answer
    x = 299,757.77

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1.5x scale

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.