Home / 1,161,840.40-1,742,760.60-413,910.80

Finding the Fourth Proportional to 1,161,840.40, 1,742,760.60 and 413,910.80

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Solution

The fourth proportional to 1,161,840.40, 1,742,760.60 and 413,910.80 is: 620,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,840.40 : 1,742,760.60 = 413,910.80 : x
  2. Step 2: Convert to fraction form
    1,161,840.40/1,742,760.60 = 413,910.80/x
  3. Step 3: Cross multiply
    1,161,840.40x = 1,742,760.60 × 413,910.80
  4. Step 4: Simplify right side
    1,161,840.40x = 721,347,434,154.48
  5. Step 5: Solve for x
    x = 721,347,434,154.48/1,161,840.40
  6. Step 6: Final answer
    x = 620,866.20

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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.