Home / 398,086.20-549,404.35-236,941.76

Finding the Fourth Proportional to 398,086.20, 549,404.35 and 236,941.76

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Solution

The fourth proportional to 398,086.20, 549,404.35 and 236,941.76 is: 327,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,086.20 : 549,404.35 = 236,941.76 : x
  2. Step 2: Convert to fraction form
    398,086.20/549,404.35 = 236,941.76/x
  3. Step 3: Cross multiply
    398,086.20x = 549,404.35 × 236,941.76
  4. Step 4: Simplify right side
    398,086.20x = 130,176,834,421.81
  5. Step 5: Solve for x
    x = 130,176,834,421.81/398,086.20
  6. Step 6: Final answer
    x = 327,006.65

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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.