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Finding the Fourth Proportional to 471,790.61, 651,066.56 and 256,934.26

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Solution

The fourth proportional to 471,790.61, 651,066.56 and 256,934.26 is: 354,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,790.61 : 651,066.56 = 256,934.26 : x
  2. Step 2: Convert to fraction form
    471,790.61/651,066.56 = 256,934.26/x
  3. Step 3: Cross multiply
    471,790.61x = 651,066.56 × 256,934.26
  4. Step 4: Simplify right side
    471,790.61x = 167,281,305,297.01
  5. Step 5: Solve for x
    x = 167,281,305,297.01/471,790.61
  6. Step 6: Final answer
    x = 354,566.84

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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.