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Finding the Fourth Proportional to 476,197.67, 657,150.72 and 261,341.21

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Solution

The fourth proportional to 476,197.67, 657,150.72 and 261,341.21 is: 360,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,197.67 : 657,150.72 = 261,341.21 : x
  2. Step 2: Convert to fraction form
    476,197.67/657,150.72 = 261,341.21/x
  3. Step 3: Cross multiply
    476,197.67x = 657,150.72 × 261,341.21
  4. Step 4: Simplify right side
    476,197.67x = 171,740,564,317.17
  5. Step 5: Solve for x
    x = 171,740,564,317.17/476,197.67
  6. Step 6: Final answer
    x = 360,649.74

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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.