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Finding the Fourth Proportional to 262,782.35, 392,733.48 and 191,854.37

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Solution

The fourth proportional to 262,782.35, 392,733.48 and 191,854.37 is: 286,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,782.35 : 392,733.48 = 191,854.37 : x
  2. Step 2: Convert to fraction form
    262,782.35/392,733.48 = 191,854.37/x
  3. Step 3: Cross multiply
    262,782.35x = 392,733.48 × 191,854.37
  4. Step 4: Simplify right side
    262,782.35x = 75,347,634,383.31
  5. Step 5: Solve for x
    x = 75,347,634,383.31/262,782.35
  6. Step 6: Final answer
    x = 286,730.19

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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.