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Finding the Fourth Proportional to 622,245.40, 931,812.90 and 410,738.20

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Solution

The fourth proportional to 622,245.40, 931,812.90 and 410,738.20 is: 615,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,245.40 : 931,812.90 = 410,738.20 : x
  2. Step 2: Convert to fraction form
    622,245.40/931,812.90 = 410,738.20/x
  3. Step 3: Cross multiply
    622,245.40x = 931,812.90 × 410,738.20
  4. Step 4: Simplify right side
    622,245.40x = 382,731,153,282.78
  5. Step 5: Solve for x
    x = 382,731,153,282.78/622,245.40
  6. Step 6: Final answer
    x = 615,080.73

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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.