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Finding the Fourth Proportional to 1,969,409, 2,954,114.40 and 621,708.14

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Solution

The fourth proportional to 1,969,409, 2,954,114.40 and 621,708.14 is: 932,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,409 : 2,954,114.40 = 621,708.14 : x
  2. Step 2: Convert to fraction form
    1,969,409/2,954,114.40 = 621,708.14/x
  3. Step 3: Cross multiply
    1,969,409x = 2,954,114.40 × 621,708.14
  4. Step 4: Simplify right side
    1,969,409x = 1,836,596,968,971.22
  5. Step 5: Solve for x
    x = 1,836,596,968,971.22/1,969,409
  6. Step 6: Final answer
    x = 932,562.49

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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.