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Finding the Fourth Proportional to 532,161.15, 734,376.63 and 290,441.76

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Solution

The fourth proportional to 532,161.15, 734,376.63 and 290,441.76 is: 400,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,161.15 : 734,376.63 = 290,441.76 : x
  2. Step 2: Convert to fraction form
    532,161.15/734,376.63 = 290,441.76/x
  3. Step 3: Cross multiply
    532,161.15x = 734,376.63 × 290,441.76
  4. Step 4: Simplify right side
    532,161.15x = 213,293,640,920.07
  5. Step 5: Solve for x
    x = 213,293,640,920.07/532,161.15
  6. Step 6: Final answer
    x = 400,806.49

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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.