Home / 786,087.60-1,179,131.40-576,135.60

Finding the Fourth Proportional to 786,087.60, 1,179,131.40 and 576,135.60

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Solution

The fourth proportional to 786,087.60, 1,179,131.40 and 576,135.60 is: 864,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,087.60 : 1,179,131.40 = 576,135.60 : x
  2. Step 2: Convert to fraction form
    786,087.60/1,179,131.40 = 576,135.60/x
  3. Step 3: Cross multiply
    786,087.60x = 1,179,131.40 × 576,135.60
  4. Step 4: Simplify right side
    786,087.60x = 679,339,576,617.84
  5. Step 5: Solve for x
    x = 679,339,576,617.84/786,087.60
  6. Step 6: Final answer
    x = 864,203.40

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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.