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Finding the Fourth Proportional to 532,480.73, 734,853.27 and 290,785.77

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Solution

The fourth proportional to 532,480.73, 734,853.27 and 290,785.77 is: 401,300.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,480.73 : 734,853.27 = 290,785.77 : x
  2. Step 2: Convert to fraction form
    532,480.73/734,853.27 = 290,785.77/x
  3. Step 3: Cross multiply
    532,480.73x = 734,853.27 × 290,785.77
  4. Step 4: Simplify right side
    532,480.73x = 213,684,873,953.97
  5. Step 5: Solve for x
    x = 213,684,873,953.97/532,480.73
  6. Step 6: Final answer
    x = 401,300.67

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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.