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Finding the Fourth Proportional to 532,435.48, 734,757.28 and 290,717.91

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Solution

The fourth proportional to 532,435.48, 734,757.28 and 290,717.91 is: 401,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,435.48 : 734,757.28 = 290,717.91 : x
  2. Step 2: Convert to fraction form
    532,435.48/734,757.28 = 290,717.91/x
  3. Step 3: Cross multiply
    532,435.48x = 734,757.28 × 290,717.91
  4. Step 4: Simplify right side
    532,435.48x = 213,607,100,072.09
  5. Step 5: Solve for x
    x = 213,607,100,072.09/532,435.48
  6. Step 6: Final answer
    x = 401,188.71

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1.5x scale

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.