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Finding the Fourth Proportional to 528,256.01, 728,993.27 and 298,808.37

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Solution

The fourth proportional to 528,256.01, 728,993.27 and 298,808.37 is: 412,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,256.01 : 728,993.27 = 298,808.37 : x
  2. Step 2: Convert to fraction form
    528,256.01/728,993.27 = 298,808.37/x
  3. Step 3: Cross multiply
    528,256.01x = 728,993.27 × 298,808.37
  4. Step 4: Simplify right side
    528,256.01x = 217,829,289,255.63
  5. Step 5: Solve for x
    x = 217,829,289,255.63/528,256.01
  6. Step 6: Final answer
    x = 412,355.54

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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.