Home / 1,091,383.35-1,636,998.80-408,140.18

Finding the Fourth Proportional to 1,091,383.35, 1,636,998.80 and 408,140.18

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Solution

The fourth proportional to 1,091,383.35, 1,636,998.80 and 408,140.18 is: 612,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,383.35 : 1,636,998.80 = 408,140.18 : x
  2. Step 2: Convert to fraction form
    1,091,383.35/1,636,998.80 = 408,140.18/x
  3. Step 3: Cross multiply
    1,091,383.35x = 1,636,998.80 × 408,140.18
  4. Step 4: Simplify right side
    1,091,383.35x = 668,124,980,804.84
  5. Step 5: Solve for x
    x = 668,124,980,804.84/1,091,383.35
  6. Step 6: Final answer
    x = 612,181.76

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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.