Home / 854,036.34-1,178,687.34-491,452.80

Finding the Fourth Proportional to 854,036.34, 1,178,687.34 and 491,452.80

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Solution

The fourth proportional to 854,036.34, 1,178,687.34 and 491,452.80 is: 678,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,036.34 : 1,178,687.34 = 491,452.80 : x
  2. Step 2: Convert to fraction form
    854,036.34/1,178,687.34 = 491,452.80/x
  3. Step 3: Cross multiply
    854,036.34x = 1,178,687.34 × 491,452.80
  4. Step 4: Simplify right side
    854,036.34x = 579,269,193,567.55
  5. Step 5: Solve for x
    x = 579,269,193,567.55/854,036.34
  6. Step 6: Final answer
    x = 678,272.30

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Half scale
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Double scale
Find fourth proportional to 854,037.34, 1,178,688.72 and 491,453.80
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.