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Finding the Fourth Proportional to 564,766.88, 779,394.84 and 319,733.36

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Solution

The fourth proportional to 564,766.88, 779,394.84 and 319,733.36 is: 441,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,766.88 : 779,394.84 = 319,733.36 : x
  2. Step 2: Convert to fraction form
    564,766.88/779,394.84 = 319,733.36/x
  3. Step 3: Cross multiply
    564,766.88x = 779,394.84 × 319,733.36
  4. Step 4: Simplify right side
    564,766.88x = 249,198,530,959.86
  5. Step 5: Solve for x
    x = 249,198,530,959.86/564,766.88
  6. Step 6: Final answer
    x = 441,241.40

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1.5x scale

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.