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Finding the Fourth Proportional to 526,322.81, 789,615.74 and 152,345.81

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Solution

The fourth proportional to 526,322.81, 789,615.74 and 152,345.81 is: 228,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,322.81 : 789,615.74 = 152,345.81 : x
  2. Step 2: Convert to fraction form
    526,322.81/789,615.74 = 152,345.81/x
  3. Step 3: Cross multiply
    526,322.81x = 789,615.74 × 152,345.81
  4. Step 4: Simplify right side
    526,322.81x = 120,294,651,853.95
  5. Step 5: Solve for x
    x = 120,294,651,853.95/526,322.81
  6. Step 6: Final answer
    x = 228,556.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.