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Finding the Fourth Proportional to 261,720.40, 367,238 and 261,720.40

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Solution

The fourth proportional to 261,720.40, 367,238 and 261,720.40 is: 367,238

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,720.40 : 367,238 = 261,720.40 : x
  2. Step 2: Convert to fraction form
    261,720.40/367,238 = 261,720.40/x
  3. Step 3: Cross multiply
    261,720.40x = 367,238 × 261,720.40
  4. Step 4: Simplify right side
    261,720.40x = 96,113,676,255.20
  5. Step 5: Solve for x
    x = 96,113,676,255.20/261,720.40
  6. Step 6: Final answer
    x = 367,238

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.