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Finding the Fourth Proportional to 476,164.85, 657,115.47 and 261,324.90

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Solution

The fourth proportional to 476,164.85, 657,115.47 and 261,324.90 is: 360,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,164.85 : 657,115.47 = 261,324.90 : x
  2. Step 2: Convert to fraction form
    476,164.85/657,115.47 = 261,324.90/x
  3. Step 3: Cross multiply
    476,164.85x = 657,115.47 × 261,324.90
  4. Step 4: Simplify right side
    476,164.85x = 171,720,634,486.20
  5. Step 5: Solve for x
    x = 171,720,634,486.20/476,164.85
  6. Step 6: Final answer
    x = 360,632.74

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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.