Home / 1,091,318.40-1,636,588.80-381,369.60

Finding the Fourth Proportional to 1,091,318.40, 1,636,588.80 and 381,369.60

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Solution

The fourth proportional to 1,091,318.40, 1,636,588.80 and 381,369.60 is: 571,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,318.40 : 1,636,588.80 = 381,369.60 : x
  2. Step 2: Convert to fraction form
    1,091,318.40/1,636,588.80 = 381,369.60/x
  3. Step 3: Cross multiply
    1,091,318.40x = 1,636,588.80 × 381,369.60
  4. Step 4: Simplify right side
    1,091,318.40x = 624,145,216,020.48
  5. Step 5: Solve for x
    x = 624,145,216,020.48/1,091,318.40
  6. Step 6: Final answer
    x = 571,918.53

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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.