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Finding the Fourth Proportional to 471,621.76, 650,841.96 and 256,763.32

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Solution

The fourth proportional to 471,621.76, 650,841.96 and 256,763.32 is: 354,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,621.76 : 650,841.96 = 256,763.32 : x
  2. Step 2: Convert to fraction form
    471,621.76/650,841.96 = 256,763.32/x
  3. Step 3: Cross multiply
    471,621.76x = 650,841.96 × 256,763.32
  4. Step 4: Simplify right side
    471,621.76x = 167,112,342,444.91
  5. Step 5: Solve for x
    x = 167,112,342,444.91/471,621.76
  6. Step 6: Final answer
    x = 354,335.52

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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.