Home / 916,640.25-1,374,997.64-436,621.29

Finding the Fourth Proportional to 916,640.25, 1,374,997.64 and 436,621.29

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Solution

The fourth proportional to 916,640.25, 1,374,997.64 and 436,621.29 is: 654,949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,640.25 : 1,374,997.64 = 436,621.29 : x
  2. Step 2: Convert to fraction form
    916,640.25/1,374,997.64 = 436,621.29/x
  3. Step 3: Cross multiply
    916,640.25x = 1,374,997.64 × 436,621.29
  4. Step 4: Simplify right side
    916,640.25x = 600,353,241,140.65
  5. Step 5: Solve for x
    x = 600,353,241,140.65/916,640.25
  6. Step 6: Final answer
    x = 654,949.68

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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.