Home / 624,630.15-861,988.64-338,150.16

Finding the Fourth Proportional to 624,630.15, 861,988.64 and 338,150.16

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Solution

The fourth proportional to 624,630.15, 861,988.64 and 338,150.16 is: 466,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,630.15 : 861,988.64 = 338,150.16 : x
  2. Step 2: Convert to fraction form
    624,630.15/861,988.64 = 338,150.16/x
  3. Step 3: Cross multiply
    624,630.15x = 861,988.64 × 338,150.16
  4. Step 4: Simplify right side
    624,630.15x = 291,481,594,843.43
  5. Step 5: Solve for x
    x = 291,481,594,843.43/624,630.15
  6. Step 6: Final answer
    x = 466,646.69

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1.5x scale

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.