Home / 419,514.30-578,731.37-283,595.90

Finding the Fourth Proportional to 419,514.30, 578,731.37 and 283,595.90

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Solution

The fourth proportional to 419,514.30, 578,731.37 and 283,595.90 is: 391,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,514.30 : 578,731.37 = 283,595.90 : x
  2. Step 2: Convert to fraction form
    419,514.30/578,731.37 = 283,595.90/x
  3. Step 3: Cross multiply
    419,514.30x = 578,731.37 × 283,595.90
  4. Step 4: Simplify right side
    419,514.30x = 164,125,839,421.75
  5. Step 5: Solve for x
    x = 164,125,839,421.75/419,514.30
  6. Step 6: Final answer
    x = 391,228.24

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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.