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Finding the Fourth Proportional to 294,032.92, 405,804.18 and 286,026.88

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Solution

The fourth proportional to 294,032.92, 405,804.18 and 286,026.88 is: 394,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,032.92 : 405,804.18 = 286,026.88 : x
  2. Step 2: Convert to fraction form
    294,032.92/405,804.18 = 286,026.88/x
  3. Step 3: Cross multiply
    294,032.92x = 405,804.18 × 286,026.88
  4. Step 4: Simplify right side
    294,032.92x = 116,070,903,496.36
  5. Step 5: Solve for x
    x = 116,070,903,496.36/294,032.92
  6. Step 6: Final answer
    x = 394,754.79

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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.