Home / 854,118.70-1,281,178.05-539,968.30

Finding the Fourth Proportional to 854,118.70, 1,281,178.05 and 539,968.30

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Solution

The fourth proportional to 854,118.70, 1,281,178.05 and 539,968.30 is: 809,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,118.70 : 1,281,178.05 = 539,968.30 : x
  2. Step 2: Convert to fraction form
    854,118.70/1,281,178.05 = 539,968.30/x
  3. Step 3: Cross multiply
    854,118.70x = 1,281,178.05 × 539,968.30
  4. Step 4: Simplify right side
    854,118.70x = 691,795,533,655.82
  5. Step 5: Solve for x
    x = 691,795,533,655.82/854,118.70
  6. Step 6: Final answer
    x = 809,952.45

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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.