Home / 807,346.60-1,211,019.90-618,389.80

Finding the Fourth Proportional to 807,346.60, 1,211,019.90 and 618,389.80

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Solution

The fourth proportional to 807,346.60, 1,211,019.90 and 618,389.80 is: 927,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,346.60 : 1,211,019.90 = 618,389.80 : x
  2. Step 2: Convert to fraction form
    807,346.60/1,211,019.90 = 618,389.80/x
  3. Step 3: Cross multiply
    807,346.60x = 1,211,019.90 × 618,389.80
  4. Step 4: Simplify right side
    807,346.60x = 748,882,353,757.02
  5. Step 5: Solve for x
    x = 748,882,353,757.02/807,346.60
  6. Step 6: Final answer
    x = 927,584.70

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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.