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Finding the Fourth Proportional to 835,806.47, 1,253,889.72 and 259,417.76

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Solution

The fourth proportional to 835,806.47, 1,253,889.72 and 259,417.76 is: 389,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,806.47 : 1,253,889.72 = 259,417.76 : x
  2. Step 2: Convert to fraction form
    835,806.47/1,253,889.72 = 259,417.76/x
  3. Step 3: Cross multiply
    835,806.47x = 1,253,889.72 × 259,417.76
  4. Step 4: Simplify right side
    835,806.47x = 325,281,256,179.98
  5. Step 5: Solve for x
    x = 325,281,256,179.98/835,806.47
  6. Step 6: Final answer
    x = 389,182.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.