Home / 854,237.70-1,281,356.55-540,087.30

Finding the Fourth Proportional to 854,237.70, 1,281,356.55 and 540,087.30

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Solution

The fourth proportional to 854,237.70, 1,281,356.55 and 540,087.30 is: 810,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,237.70 : 1,281,356.55 = 540,087.30 : x
  2. Step 2: Convert to fraction form
    854,237.70/1,281,356.55 = 540,087.30/x
  3. Step 3: Cross multiply
    854,237.70x = 1,281,356.55 × 540,087.30
  4. Step 4: Simplify right side
    854,237.70x = 692,044,399,426.82
  5. Step 5: Solve for x
    x = 692,044,399,426.82/854,237.70
  6. Step 6: Final answer
    x = 810,130.95

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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.