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Finding the Fourth Proportional to 532,328.18, 734,624.01 and 290,620.94

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Solution

The fourth proportional to 532,328.18, 734,624.01 and 290,620.94 is: 401,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,328.18 : 734,624.01 = 290,620.94 : x
  2. Step 2: Convert to fraction form
    532,328.18/734,624.01 = 290,620.94/x
  3. Step 3: Cross multiply
    532,328.18x = 734,624.01 × 290,620.94
  4. Step 4: Simplify right side
    532,328.18x = 213,497,116,659.65
  5. Step 5: Solve for x
    x = 213,497,116,659.65/532,328.18
  6. Step 6: Final answer
    x = 401,062.97

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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.