Home / 1,091,079.09-1,636,618.51-417,228.54

Finding the Fourth Proportional to 1,091,079.09, 1,636,618.51 and 417,228.54

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Solution

The fourth proportional to 1,091,079.09, 1,636,618.51 and 417,228.54 is: 625,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,079.09 : 1,636,618.51 = 417,228.54 : x
  2. Step 2: Convert to fraction form
    1,091,079.09/1,636,618.51 = 417,228.54/x
  3. Step 3: Cross multiply
    1,091,079.09x = 1,636,618.51 × 417,228.54
  4. Step 4: Simplify right side
    1,091,079.09x = 682,843,951,464.28
  5. Step 5: Solve for x
    x = 682,843,951,464.28/1,091,079.09
  6. Step 6: Final answer
    x = 625,842.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.