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Finding the Fourth Proportional to 606,615, 837,128.70 and 338,343

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Solution

The fourth proportional to 606,615, 837,128.70 and 338,343 is: 466,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,615 : 837,128.70 = 338,343 : x
  2. Step 2: Convert to fraction form
    606,615/837,128.70 = 338,343/x
  3. Step 3: Cross multiply
    606,615x = 837,128.70 × 338,343
  4. Step 4: Simplify right side
    606,615x = 283,236,635,744.10
  5. Step 5: Solve for x
    x = 283,236,635,744.10/606,615
  6. Step 6: Final answer
    x = 466,913.34

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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.