Home / 389,926.20-583,722.90-366,857.40

Finding the Fourth Proportional to 389,926.20, 583,722.90 and 366,857.40

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Solution

The fourth proportional to 389,926.20, 583,722.90 and 366,857.40 is: 549,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,926.20 : 583,722.90 = 366,857.40 : x
  2. Step 2: Convert to fraction form
    389,926.20/583,722.90 = 366,857.40/x
  3. Step 3: Cross multiply
    389,926.20x = 583,722.90 × 366,857.40
  4. Step 4: Simplify right side
    389,926.20x = 214,143,065,414.46
  5. Step 5: Solve for x
    x = 214,143,065,414.46/389,926.20
  6. Step 6: Final answer
    x = 549,188.71

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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.