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Finding the Fourth Proportional to 476,081.92, 656,999.52 and 261,218.08

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Solution

The fourth proportional to 476,081.92, 656,999.52 and 261,218.08 is: 360,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,081.92 : 656,999.52 = 261,218.08 : x
  2. Step 2: Convert to fraction form
    476,081.92/656,999.52 = 261,218.08/x
  3. Step 3: Cross multiply
    476,081.92x = 656,999.52 × 261,218.08
  4. Step 4: Simplify right side
    476,081.92x = 171,620,153,175.32
  5. Step 5: Solve for x
    x = 171,620,153,175.32/476,081.92
  6. Step 6: Final answer
    x = 360,484.50

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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.