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Finding the Fourth Proportional to 528,127.24, 728,806.24 and 301,767.88

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Solution

The fourth proportional to 528,127.24, 728,806.24 and 301,767.88 is: 416,434.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,127.24 : 728,806.24 = 301,767.88 : x
  2. Step 2: Convert to fraction form
    528,127.24/728,806.24 = 301,767.88/x
  3. Step 3: Cross multiply
    528,127.24x = 728,806.24 × 301,767.88
  4. Step 4: Simplify right side
    528,127.24x = 219,930,313,975.57
  5. Step 5: Solve for x
    x = 219,930,313,975.57/528,127.24
  6. Step 6: Final answer
    x = 416,434.33

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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.