Home / 2,136,836.40-3,205,254.60-640,928.40

Finding the Fourth Proportional to 2,136,836.40, 3,205,254.60 and 640,928.40

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Solution

The fourth proportional to 2,136,836.40, 3,205,254.60 and 640,928.40 is: 961,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,836.40 : 3,205,254.60 = 640,928.40 : x
  2. Step 2: Convert to fraction form
    2,136,836.40/3,205,254.60 = 640,928.40/x
  3. Step 3: Cross multiply
    2,136,836.40x = 3,205,254.60 × 640,928.40
  4. Step 4: Simplify right side
    2,136,836.40x = 2,054,338,702,370.64
  5. Step 5: Solve for x
    x = 2,054,338,702,370.64/2,136,836.40
  6. Step 6: Final answer
    x = 961,392.60

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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.