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Finding the Fourth Proportional to 626,513.39, 864,589.32 and 340,033.48

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Solution

The fourth proportional to 626,513.39, 864,589.32 and 340,033.48 is: 469,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,513.39 : 864,589.32 = 340,033.48 : x
  2. Step 2: Convert to fraction form
    626,513.39/864,589.32 = 340,033.48/x
  3. Step 3: Cross multiply
    626,513.39x = 864,589.32 × 340,033.48
  4. Step 4: Simplify right side
    626,513.39x = 293,989,315,250.43
  5. Step 5: Solve for x
    x = 293,989,315,250.43/626,513.39
  6. Step 6: Final answer
    x = 469,246.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.