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Finding the Fourth Proportional to 332,303.60, 498,455.40 and 172,871.30

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Solution

The fourth proportional to 332,303.60, 498,455.40 and 172,871.30 is: 259,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,303.60 : 498,455.40 = 172,871.30 : x
  2. Step 2: Convert to fraction form
    332,303.60/498,455.40 = 172,871.30/x
  3. Step 3: Cross multiply
    332,303.60x = 498,455.40 × 172,871.30
  4. Step 4: Simplify right side
    332,303.60x = 86,168,632,990.02
  5. Step 5: Solve for x
    x = 86,168,632,990.02/332,303.60
  6. Step 6: Final answer
    x = 259,306.95

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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.