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Finding the Fourth Proportional to 341,567.64, 512,087.48 and 128,331.03

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Solution

The fourth proportional to 341,567.64, 512,087.48 and 128,331.03 is: 192,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,567.64 : 512,087.48 = 128,331.03 : x
  2. Step 2: Convert to fraction form
    341,567.64/512,087.48 = 128,331.03/x
  3. Step 3: Cross multiply
    341,567.64x = 512,087.48 × 128,331.03
  4. Step 4: Simplify right side
    341,567.64x = 65,716,713,116.85
  5. Step 5: Solve for x
    x = 65,716,713,116.85/341,567.64
  6. Step 6: Final answer
    x = 192,397.36

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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.