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Finding the Fourth Proportional to 457,994.25, 632,032.07 and 256,790.25

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Solution

The fourth proportional to 457,994.25, 632,032.07 and 256,790.25 is: 354,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,994.25 : 632,032.07 = 256,790.25 : x
  2. Step 2: Convert to fraction form
    457,994.25/632,032.07 = 256,790.25/x
  3. Step 3: Cross multiply
    457,994.25x = 632,032.07 × 256,790.25
  4. Step 4: Simplify right side
    457,994.25x = 162,299,671,979.37
  5. Step 5: Solve for x
    x = 162,299,671,979.37/457,994.25
  6. Step 6: Final answer
    x = 354,370.55

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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.