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Finding the Fourth Proportional to 598,398.75, 825,786.35 and 340,275.72

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Solution

The fourth proportional to 598,398.75, 825,786.35 and 340,275.72 is: 469,578.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,398.75 : 825,786.35 = 340,275.72 : x
  2. Step 2: Convert to fraction form
    598,398.75/825,786.35 = 340,275.72/x
  3. Step 3: Cross multiply
    598,398.75x = 825,786.35 × 340,275.72
  4. Step 4: Simplify right side
    598,398.75x = 280,995,043,111.04
  5. Step 5: Solve for x
    x = 280,995,043,111.04/598,398.75
  6. Step 6: Final answer
    x = 469,578.26

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Double scale
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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.