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Finding the Fourth Proportional to 383,010.90, 528,163.03 and 253,904.46

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Solution

The fourth proportional to 383,010.90, 528,163.03 and 253,904.46 is: 350,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,010.90 : 528,163.03 = 253,904.46 : x
  2. Step 2: Convert to fraction form
    383,010.90/528,163.03 = 253,904.46/x
  3. Step 3: Cross multiply
    383,010.90x = 528,163.03 × 253,904.46
  4. Step 4: Simplify right side
    383,010.90x = 134,102,948,924.11
  5. Step 5: Solve for x
    x = 134,102,948,924.11/383,010.90
  6. Step 6: Final answer
    x = 350,128.28

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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.