Home / 634,921.58-876,231.18-419,688.38

Finding the Fourth Proportional to 634,921.58, 876,231.18 and 419,688.38

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Solution

The fourth proportional to 634,921.58, 876,231.18 and 419,688.38 is: 579,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,921.58 : 876,231.18 = 419,688.38 : x
  2. Step 2: Convert to fraction form
    634,921.58/876,231.18 = 419,688.38/x
  3. Step 3: Cross multiply
    634,921.58x = 876,231.18 × 419,688.38
  4. Step 4: Simplify right side
    634,921.58x = 367,744,044,439.69
  5. Step 5: Solve for x
    x = 367,744,044,439.69/634,921.58
  6. Step 6: Final answer
    x = 579,196.01

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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.