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Finding the Fourth Proportional to 501,609.16, 692,218.74 and 275,258.44

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Solution

The fourth proportional to 501,609.16, 692,218.74 and 275,258.44 is: 379,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,609.16 : 692,218.74 = 275,258.44 : x
  2. Step 2: Convert to fraction form
    501,609.16/692,218.74 = 275,258.44/x
  3. Step 3: Cross multiply
    501,609.16x = 692,218.74 × 275,258.44
  4. Step 4: Simplify right side
    501,609.16x = 190,539,050,511.17
  5. Step 5: Solve for x
    x = 190,539,050,511.17/501,609.16
  6. Step 6: Final answer
    x = 379,855.60

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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.