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Finding the Fourth Proportional to 559,315.48, 838,649.22 and 382,036.72

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Solution

The fourth proportional to 559,315.48, 838,649.22 and 382,036.72 is: 572,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,315.48 : 838,649.22 = 382,036.72 : x
  2. Step 2: Convert to fraction form
    559,315.48/838,649.22 = 382,036.72/x
  3. Step 3: Cross multiply
    559,315.48x = 838,649.22 × 382,036.72
  4. Step 4: Simplify right side
    559,315.48x = 320,394,797,239.36
  5. Step 5: Solve for x
    x = 320,394,797,239.36/559,315.48
  6. Step 6: Final answer
    x = 572,833.77

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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.