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Finding the Fourth Proportional to 341,980.32, 471,918.20 and 189,010.64

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Solution

The fourth proportional to 341,980.32, 471,918.20 and 189,010.64 is: 260,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,980.32 : 471,918.20 = 189,010.64 : x
  2. Step 2: Convert to fraction form
    341,980.32/471,918.20 = 189,010.64/x
  3. Step 3: Cross multiply
    341,980.32x = 471,918.20 × 189,010.64
  4. Step 4: Simplify right side
    341,980.32x = 89,197,561,009.65
  5. Step 5: Solve for x
    x = 89,197,561,009.65/341,980.32
  6. Step 6: Final answer
    x = 260,826.59

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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.