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Finding the Fourth Proportional to 476,443.40, 657,493.17 and 261,597.38

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Solution

The fourth proportional to 476,443.40, 657,493.17 and 261,597.38 is: 361,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,443.40 : 657,493.17 = 261,597.38 : x
  2. Step 2: Convert to fraction form
    476,443.40/657,493.17 = 261,597.38/x
  3. Step 3: Cross multiply
    476,443.40x = 657,493.17 × 261,597.38
  4. Step 4: Simplify right side
    476,443.40x = 171,998,487,352.43
  5. Step 5: Solve for x
    x = 171,998,487,352.43/476,443.40
  6. Step 6: Final answer
    x = 361,005.08

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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.