Home / 620,824.80-931,496.40-200,229.60

Finding the Fourth Proportional to 620,824.80, 931,496.40 and 200,229.60

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Solution

The fourth proportional to 620,824.80, 931,496.40 and 200,229.60 is: 300,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,824.80 : 931,496.40 = 200,229.60 : x
  2. Step 2: Convert to fraction form
    620,824.80/931,496.40 = 200,229.60/x
  3. Step 3: Cross multiply
    620,824.80x = 931,496.40 × 200,229.60
  4. Step 4: Simplify right side
    620,824.80x = 186,513,151,573.44
  5. Step 5: Solve for x
    x = 186,513,151,573.44/620,824.80
  6. Step 6: Final answer
    x = 300,428.00

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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.