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Finding the Fourth Proportional to 351,389.18, 484,917.28 and 190,244.28

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Solution

The fourth proportional to 351,389.18, 484,917.28 and 190,244.28 is: 262,537.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,389.18 : 484,917.28 = 190,244.28 : x
  2. Step 2: Convert to fraction form
    351,389.18/484,917.28 = 190,244.28/x
  3. Step 3: Cross multiply
    351,389.18x = 484,917.28 × 190,244.28
  4. Step 4: Simplify right side
    351,389.18x = 92,252,738,793.16
  5. Step 5: Solve for x
    x = 92,252,738,793.16/351,389.18
  6. Step 6: Final answer
    x = 262,537.22

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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.