Home / 976,812.80-1,465,219.20-622,081.40

Finding the Fourth Proportional to 976,812.80, 1,465,219.20 and 622,081.40

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Solution

The fourth proportional to 976,812.80, 1,465,219.20 and 622,081.40 is: 933,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,812.80 : 1,465,219.20 = 622,081.40 : x
  2. Step 2: Convert to fraction form
    976,812.80/1,465,219.20 = 622,081.40/x
  3. Step 3: Cross multiply
    976,812.80x = 1,465,219.20 × 622,081.40
  4. Step 4: Simplify right side
    976,812.80x = 911,485,611,242.88
  5. Step 5: Solve for x
    x = 911,485,611,242.88/976,812.80
  6. Step 6: Final answer
    x = 933,122.10

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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.