Home / 815,619.60-1,223,429.40-590,504.40

Finding the Fourth Proportional to 815,619.60, 1,223,429.40 and 590,504.40

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Solution

The fourth proportional to 815,619.60, 1,223,429.40 and 590,504.40 is: 885,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,619.60 : 1,223,429.40 = 590,504.40 : x
  2. Step 2: Convert to fraction form
    815,619.60/1,223,429.40 = 590,504.40/x
  3. Step 3: Cross multiply
    815,619.60x = 1,223,429.40 × 590,504.40
  4. Step 4: Simplify right side
    815,619.60x = 722,440,443,789.36
  5. Step 5: Solve for x
    x = 722,440,443,789.36/815,619.60
  6. Step 6: Final answer
    x = 885,756.60

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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.