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Finding the Fourth Proportional to 417,020.94, 620,166.60 and 403,734.90

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Solution

The fourth proportional to 417,020.94, 620,166.60 and 403,734.90 is: 600,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,020.94 : 620,166.60 = 403,734.90 : x
  2. Step 2: Convert to fraction form
    417,020.94/620,166.60 = 403,734.90/x
  3. Step 3: Cross multiply
    417,020.94x = 620,166.60 × 403,734.90
  4. Step 4: Simplify right side
    417,020.94x = 250,382,900,234.34
  5. Step 5: Solve for x
    x = 250,382,900,234.34/417,020.94
  6. Step 6: Final answer
    x = 600,408.46

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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.