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Finding the Fourth Proportional to 532,379.54, 734,701.15 and 290,680.50

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Solution

The fourth proportional to 532,379.54, 734,701.15 and 290,680.50 is: 401,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,379.54 : 734,701.15 = 290,680.50 : x
  2. Step 2: Convert to fraction form
    532,379.54/734,701.15 = 290,680.50/x
  3. Step 3: Cross multiply
    532,379.54x = 734,701.15 × 290,680.50
  4. Step 4: Simplify right side
    532,379.54x = 213,563,297,632.58
  5. Step 5: Solve for x
    x = 213,563,297,632.58/532,379.54
  6. Step 6: Final answer
    x = 401,148.58

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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.