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Finding the Fourth Proportional to 532,328.55, 734,624.52 and 290,621.31

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Solution

The fourth proportional to 532,328.55, 734,624.52 and 290,621.31 is: 401,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,328.55 : 734,624.52 = 290,621.31 : x
  2. Step 2: Convert to fraction form
    532,328.55/734,624.52 = 290,621.31/x
  3. Step 3: Cross multiply
    532,328.55x = 734,624.52 × 290,621.31
  4. Step 4: Simplify right side
    532,328.55x = 213,497,540,360.52
  5. Step 5: Solve for x
    x = 213,497,540,360.52/532,328.55
  6. Step 6: Final answer
    x = 401,063.48

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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.