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Finding the Fourth Proportional to 564,917.37, 779,260.55 and 338,431.65

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Solution

The fourth proportional to 564,917.37, 779,260.55 and 338,431.65 is: 466,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,917.37 : 779,260.55 = 338,431.65 : x
  2. Step 2: Convert to fraction form
    564,917.37/779,260.55 = 338,431.65/x
  3. Step 3: Cross multiply
    564,917.37x = 779,260.55 × 338,431.65
  4. Step 4: Simplify right side
    564,917.37x = 263,726,432,024.25
  5. Step 5: Solve for x
    x = 263,726,432,024.25/564,917.37
  6. Step 6: Final answer
    x = 466,840.72

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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.