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Finding the Fourth Proportional to 373,987.35, 515,652.30 and 259,365.33

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Solution

The fourth proportional to 373,987.35, 515,652.30 and 259,365.33 is: 357,611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,987.35 : 515,652.30 = 259,365.33 : x
  2. Step 2: Convert to fraction form
    373,987.35/515,652.30 = 259,365.33/x
  3. Step 3: Cross multiply
    373,987.35x = 515,652.30 × 259,365.33
  4. Step 4: Simplify right side
    373,987.35x = 133,742,328,954.76
  5. Step 5: Solve for x
    x = 133,742,328,954.76/373,987.35
  6. Step 6: Final answer
    x = 357,611.91

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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.