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Finding the Fourth Proportional to 476,810.75, 657,771.49 and 347,471.91

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Solution

The fourth proportional to 476,810.75, 657,771.49 and 347,471.91 is: 479,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,810.75 : 657,771.49 = 347,471.91 : x
  2. Step 2: Convert to fraction form
    476,810.75/657,771.49 = 347,471.91/x
  3. Step 3: Cross multiply
    476,810.75x = 657,771.49 × 347,471.91
  4. Step 4: Simplify right side
    476,810.75x = 228,557,115,973.85
  5. Step 5: Solve for x
    x = 228,557,115,973.85/476,810.75
  6. Step 6: Final answer
    x = 479,345.56

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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.