Home / 683,069.44-942,718.87-396,589.53

Finding the Fourth Proportional to 683,069.44, 942,718.87 and 396,589.53

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Solution

The fourth proportional to 683,069.44, 942,718.87 and 396,589.53 is: 547,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,069.44 : 942,718.87 = 396,589.53 : x
  2. Step 2: Convert to fraction form
    683,069.44/942,718.87 = 396,589.53/x
  3. Step 3: Cross multiply
    683,069.44x = 942,718.87 × 396,589.53
  4. Step 4: Simplify right side
    683,069.44x = 373,872,428,345.92
  5. Step 5: Solve for x
    x = 373,872,428,345.92/683,069.44
  6. Step 6: Final answer
    x = 547,341.76

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Half scale
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Double scale
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Similar ratio
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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.