Home / 2,130,573.60-3,195,860.40-1,185,789.60

Finding the Fourth Proportional to 2,130,573.60, 3,195,860.40 and 1,185,789.60

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Solution

The fourth proportional to 2,130,573.60, 3,195,860.40 and 1,185,789.60 is: 1,778,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,573.60 : 3,195,860.40 = 1,185,789.60 : x
  2. Step 2: Convert to fraction form
    2,130,573.60/3,195,860.40 = 1,185,789.60/x
  3. Step 3: Cross multiply
    2,130,573.60x = 3,195,860.40 × 1,185,789.60
  4. Step 4: Simplify right side
    2,130,573.60x = 3,789,618,025,371.84
  5. Step 5: Solve for x
    x = 3,789,618,025,371.84/2,130,573.60
  6. Step 6: Final answer
    x = 1,778,684.40

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Double scale
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Similar ratio
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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.