Home / 423,742.40-635,095.20-186,833.60

Finding the Fourth Proportional to 423,742.40, 635,095.20 and 186,833.60

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Solution

The fourth proportional to 423,742.40, 635,095.20 and 186,833.60 is: 280,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,742.40 : 635,095.20 = 186,833.60 : x
  2. Step 2: Convert to fraction form
    423,742.40/635,095.20 = 186,833.60/x
  3. Step 3: Cross multiply
    423,742.40x = 635,095.20 × 186,833.60
  4. Step 4: Simplify right side
    423,742.40x = 118,657,122,558.72
  5. Step 5: Solve for x
    x = 118,657,122,558.72/423,742.40
  6. Step 6: Final answer
    x = 280,021.83

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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.