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Finding the Fourth Proportional to 416,284.35, 621,414.32 and 365,840.27

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Solution

The fourth proportional to 416,284.35, 621,414.32 and 365,840.27 is: 546,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,284.35 : 621,414.32 = 365,840.27 : x
  2. Step 2: Convert to fraction form
    416,284.35/621,414.32 = 365,840.27/x
  3. Step 3: Cross multiply
    416,284.35x = 621,414.32 × 365,840.27
  4. Step 4: Simplify right side
    416,284.35x = 227,338,382,610.67
  5. Step 5: Solve for x
    x = 227,338,382,610.67/416,284.35
  6. Step 6: Final answer
    x = 546,113.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.