Home / 831,617.42-1,147,629.69-464,090.65

Finding the Fourth Proportional to 831,617.42, 1,147,629.69 and 464,090.65

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Solution

The fourth proportional to 831,617.42, 1,147,629.69 and 464,090.65 is: 640,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,617.42 : 1,147,629.69 = 464,090.65 : x
  2. Step 2: Convert to fraction form
    831,617.42/1,147,629.69 = 464,090.65/x
  3. Step 3: Cross multiply
    831,617.42x = 1,147,629.69 × 464,090.65
  4. Step 4: Simplify right side
    831,617.42x = 532,604,205,922.32
  5. Step 5: Solve for x
    x = 532,604,205,922.32/831,617.42
  6. Step 6: Final answer
    x = 640,443.79

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Double scale
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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.