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Finding the Fourth Proportional to 325,632.80, 489,032.40 and 236,986.40

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Solution

The fourth proportional to 325,632.80, 489,032.40 and 236,986.40 is: 355,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,632.80 : 489,032.40 = 236,986.40 : x
  2. Step 2: Convert to fraction form
    325,632.80/489,032.40 = 236,986.40/x
  3. Step 3: Cross multiply
    325,632.80x = 489,032.40 × 236,986.40
  4. Step 4: Simplify right side
    325,632.80x = 115,894,027,959.36
  5. Step 5: Solve for x
    x = 115,894,027,959.36/325,632.80
  6. Step 6: Final answer
    x = 355,904.04

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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.