Home / 854,554.68-1,178,929.26-491,891.76

Finding the Fourth Proportional to 854,554.68, 1,178,929.26 and 491,891.76

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Solution

The fourth proportional to 854,554.68, 1,178,929.26 and 491,891.76 is: 678,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,554.68 : 1,178,929.26 = 491,891.76 : x
  2. Step 2: Convert to fraction form
    854,554.68/1,178,929.26 = 491,891.76/x
  3. Step 3: Cross multiply
    854,554.68x = 1,178,929.26 × 491,891.76
  4. Step 4: Simplify right side
    854,554.68x = 579,905,588,616.90
  5. Step 5: Solve for x
    x = 579,905,588,616.90/854,554.68
  6. Step 6: Final answer
    x = 678,605.60

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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.