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Finding the Fourth Proportional to 532,402.61, 734,780.03 and 303,015.67

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Solution

The fourth proportional to 532,402.61, 734,780.03 and 303,015.67 is: 418,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,402.61 : 734,780.03 = 303,015.67 : x
  2. Step 2: Convert to fraction form
    532,402.61/734,780.03 = 303,015.67/x
  3. Step 3: Cross multiply
    532,402.61x = 734,780.03 × 303,015.67
  4. Step 4: Simplify right side
    532,402.61x = 222,649,859,741.04
  5. Step 5: Solve for x
    x = 222,649,859,741.04/532,402.61
  6. Step 6: Final answer
    x = 418,198.29

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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.