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Finding the Fourth Proportional to 646,770.09, 886,079.30 and 622,528.21

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Solution

The fourth proportional to 646,770.09, 886,079.30 and 622,528.21 is: 852,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,770.09 : 886,079.30 = 622,528.21 : x
  2. Step 2: Convert to fraction form
    646,770.09/886,079.30 = 622,528.21/x
  3. Step 3: Cross multiply
    646,770.09x = 886,079.30 × 622,528.21
  4. Step 4: Simplify right side
    646,770.09x = 551,609,359,888.18
  5. Step 5: Solve for x
    x = 551,609,359,888.18/646,770.09
  6. Step 6: Final answer
    x = 852,867.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.