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Finding the Fourth Proportional to 476,571.64, 657,643.26 and 261,740.92

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Solution

The fourth proportional to 476,571.64, 657,643.26 and 261,740.92 is: 361,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,571.64 : 657,643.26 = 261,740.92 : x
  2. Step 2: Convert to fraction form
    476,571.64/657,643.26 = 261,740.92/x
  3. Step 3: Cross multiply
    476,571.64x = 657,643.26 × 261,740.92
  4. Step 4: Simplify right side
    476,571.64x = 172,132,151,904.20
  5. Step 5: Solve for x
    x = 172,132,151,904.20/476,571.64
  6. Step 6: Final answer
    x = 361,188.41

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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.