Home / 1,212,209.40-1,818,141.30-413,527.80

Finding the Fourth Proportional to 1,212,209.40, 1,818,141.30 and 413,527.80

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Solution

The fourth proportional to 1,212,209.40, 1,818,141.30 and 413,527.80 is: 620,232.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,209.40 : 1,818,141.30 = 413,527.80 : x
  2. Step 2: Convert to fraction form
    1,212,209.40/1,818,141.30 = 413,527.80/x
  3. Step 3: Cross multiply
    1,212,209.40x = 1,818,141.30 × 413,527.80
  4. Step 4: Simplify right side
    1,212,209.40x = 751,851,971,878.14
  5. Step 5: Solve for x
    x = 751,851,971,878.14/1,212,209.40
  6. Step 6: Final answer
    x = 620,232.75

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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.