Home / 726,563.60-1,089,845.40-653,080.40

Finding the Fourth Proportional to 726,563.60, 1,089,845.40 and 653,080.40

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Solution

The fourth proportional to 726,563.60, 1,089,845.40 and 653,080.40 is: 979,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,563.60 : 1,089,845.40 = 653,080.40 : x
  2. Step 2: Convert to fraction form
    726,563.60/1,089,845.40 = 653,080.40/x
  3. Step 3: Cross multiply
    726,563.60x = 1,089,845.40 × 653,080.40
  4. Step 4: Simplify right side
    726,563.60x = 711,756,669,770.16
  5. Step 5: Solve for x
    x = 711,756,669,770.16/726,563.60
  6. Step 6: Final answer
    x = 979,620.60

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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.