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Finding the Fourth Proportional to 262,774.39, 392,721.63 and 191,846.39

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Solution

The fourth proportional to 262,774.39, 392,721.63 and 191,846.39 is: 286,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,774.39 : 392,721.63 = 191,846.39 : x
  2. Step 2: Convert to fraction form
    262,774.39/392,721.63 = 191,846.39/x
  3. Step 3: Cross multiply
    262,774.39x = 392,721.63 × 191,846.39
  4. Step 4: Simplify right side
    262,774.39x = 75,342,226,516.44
  5. Step 5: Solve for x
    x = 75,342,226,516.44/262,774.39
  6. Step 6: Final answer
    x = 286,718.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.