Home / 854,338.31-1,280,874.75-517,299.74

Finding the Fourth Proportional to 854,338.31, 1,280,874.75 and 517,299.74

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Solution

The fourth proportional to 854,338.31, 1,280,874.75 and 517,299.74 is: 775,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,338.31 : 1,280,874.75 = 517,299.74 : x
  2. Step 2: Convert to fraction form
    854,338.31/1,280,874.75 = 517,299.74/x
  3. Step 3: Cross multiply
    854,338.31x = 1,280,874.75 × 517,299.74
  4. Step 4: Simplify right side
    854,338.31x = 662,596,175,147.57
  5. Step 5: Solve for x
    x = 662,596,175,147.57/854,338.31
  6. Step 6: Final answer
    x = 775,566.50

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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.