Home / 1,246,513.40-1,869,770.10-405,150.20

Finding the Fourth Proportional to 1,246,513.40, 1,869,770.10 and 405,150.20

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Solution

The fourth proportional to 1,246,513.40, 1,869,770.10 and 405,150.20 is: 607,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,513.40 : 1,869,770.10 = 405,150.20 : x
  2. Step 2: Convert to fraction form
    1,246,513.40/1,869,770.10 = 405,150.20/x
  3. Step 3: Cross multiply
    1,246,513.40x = 1,869,770.10 × 405,150.20
  4. Step 4: Simplify right side
    1,246,513.40x = 757,537,729,969.02
  5. Step 5: Solve for x
    x = 757,537,729,969.02/1,246,513.40
  6. Step 6: Final answer
    x = 607,725.30

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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.