Home / 389,441.56-583,953.36-199,823.80

Finding the Fourth Proportional to 389,441.56, 583,953.36 and 199,823.80

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Solution

The fourth proportional to 389,441.56, 583,953.36 and 199,823.80 is: 299,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,441.56 : 583,953.36 = 199,823.80 : x
  2. Step 2: Convert to fraction form
    389,441.56/583,953.36 = 199,823.80/x
  3. Step 3: Cross multiply
    389,441.56x = 583,953.36 × 199,823.80
  4. Step 4: Simplify right side
    389,441.56x = 116,687,779,417.97
  5. Step 5: Solve for x
    x = 116,687,779,417.97/389,441.56
  6. Step 6: Final answer
    x = 299,628.47

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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.