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Finding the Fourth Proportional to 368,258.26, 508,074.21 and 300,158.14

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Solution

The fourth proportional to 368,258.26, 508,074.21 and 300,158.14 is: 414,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,258.26 : 508,074.21 = 300,158.14 : x
  2. Step 2: Convert to fraction form
    368,258.26/508,074.21 = 300,158.14/x
  3. Step 3: Cross multiply
    368,258.26x = 508,074.21 × 300,158.14
  4. Step 4: Simplify right side
    368,258.26x = 152,502,609,855.57
  5. Step 5: Solve for x
    x = 152,502,609,855.57/368,258.26
  6. Step 6: Final answer
    x = 414,118.64

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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.