Home / 856,497.96-1,284,747.96-257,459.16

Finding the Fourth Proportional to 856,497.96, 1,284,747.96 and 257,459.16

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Solution

The fourth proportional to 856,497.96, 1,284,747.96 and 257,459.16 is: 386,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,497.96 : 1,284,747.96 = 257,459.16 : x
  2. Step 2: Convert to fraction form
    856,497.96/1,284,747.96 = 257,459.16/x
  3. Step 3: Cross multiply
    856,497.96x = 1,284,747.96 × 257,459.16
  4. Step 4: Simplify right side
    856,497.96x = 330,770,130,593.31
  5. Step 5: Solve for x
    x = 330,770,130,593.31/856,497.96
  6. Step 6: Final answer
    x = 386,189.05

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.