Home / 430,757.50-646,136.41-193,823.39

Finding the Fourth Proportional to 430,757.50, 646,136.41 and 193,823.39

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Solution

The fourth proportional to 430,757.50, 646,136.41 and 193,823.39 is: 290,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,757.50 : 646,136.41 = 193,823.39 : x
  2. Step 2: Convert to fraction form
    430,757.50/646,136.41 = 193,823.39/x
  3. Step 3: Cross multiply
    430,757.50x = 646,136.41 × 193,823.39
  4. Step 4: Simplify right side
    430,757.50x = 125,236,349,388.63
  5. Step 5: Solve for x
    x = 125,236,349,388.63/430,757.50
  6. Step 6: Final answer
    x = 290,735.16

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1.5x scale

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.