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Finding the Fourth Proportional to 289,157.98, 398,325.01 and 245,999.24

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Solution

The fourth proportional to 289,157.98, 398,325.01 and 245,999.24 is: 338,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,157.98 : 398,325.01 = 245,999.24 : x
  2. Step 2: Convert to fraction form
    289,157.98/398,325.01 = 245,999.24/x
  3. Step 3: Cross multiply
    289,157.98x = 398,325.01 × 245,999.24
  4. Step 4: Simplify right side
    289,157.98x = 97,987,649,641.48
  5. Step 5: Solve for x
    x = 97,987,649,641.48/289,157.98
  6. Step 6: Final answer
    x = 338,872.37

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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.