Home / 621,626.28-857,784.11-349,788.26

Finding the Fourth Proportional to 621,626.28, 857,784.11 and 349,788.26

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Solution

The fourth proportional to 621,626.28, 857,784.11 and 349,788.26 is: 482,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,626.28 : 857,784.11 = 349,788.26 : x
  2. Step 2: Convert to fraction form
    621,626.28/857,784.11 = 349,788.26/x
  3. Step 3: Cross multiply
    621,626.28x = 857,784.11 × 349,788.26
  4. Step 4: Simplify right side
    621,626.28x = 300,042,805,254.69
  5. Step 5: Solve for x
    x = 300,042,805,254.69/621,626.28
  6. Step 6: Final answer
    x = 482,673.94

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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.