Home / 854,014.59-1,178,657.33-491,431.05

Finding the Fourth Proportional to 854,014.59, 1,178,657.33 and 491,431.05

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Solution

The fourth proportional to 854,014.59, 1,178,657.33 and 491,431.05 is: 678,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,014.59 : 1,178,657.33 = 491,431.05 : x
  2. Step 2: Convert to fraction form
    854,014.59/1,178,657.33 = 491,431.05/x
  3. Step 3: Cross multiply
    854,014.59x = 1,178,657.33 × 491,431.05
  4. Step 4: Simplify right side
    854,014.59x = 579,228,806,814.94
  5. Step 5: Solve for x
    x = 579,228,806,814.94/854,014.59
  6. Step 6: Final answer
    x = 678,242.28

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Double scale
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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.