Home / 389,108.27-583,680.30-119,217.08

Finding the Fourth Proportional to 389,108.27, 583,680.30 and 119,217.08

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Solution

The fourth proportional to 389,108.27, 583,680.30 and 119,217.08 is: 178,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,108.27 : 583,680.30 = 119,217.08 : x
  2. Step 2: Convert to fraction form
    389,108.27/583,680.30 = 119,217.08/x
  3. Step 3: Cross multiply
    389,108.27x = 583,680.30 × 119,217.08
  4. Step 4: Simplify right side
    389,108.27x = 69,584,662,031.66
  5. Step 5: Solve for x
    x = 69,584,662,031.66/389,108.27
  6. Step 6: Final answer
    x = 178,831.10

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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.