Home / 805,784.38-1,112,140.39-461,850.85

Finding the Fourth Proportional to 805,784.38, 1,112,140.39 and 461,850.85

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Solution

The fourth proportional to 805,784.38, 1,112,140.39 and 461,850.85 is: 637,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,784.38 : 1,112,140.39 = 461,850.85 : x
  2. Step 2: Convert to fraction form
    805,784.38/1,112,140.39 = 461,850.85/x
  3. Step 3: Cross multiply
    805,784.38x = 1,112,140.39 × 461,850.85
  4. Step 4: Simplify right side
    805,784.38x = 513,642,984,440.83
  5. Step 5: Solve for x
    x = 513,642,984,440.83/805,784.38
  6. Step 6: Final answer
    x = 637,444.71

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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.