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Finding the Fourth Proportional to 326,533.75, 489,800.63 and 116,172.30

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Solution

The fourth proportional to 326,533.75, 489,800.63 and 116,172.30 is: 174,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,533.75 : 489,800.63 = 116,172.30 : x
  2. Step 2: Convert to fraction form
    326,533.75/489,800.63 = 116,172.30/x
  3. Step 3: Cross multiply
    326,533.75x = 489,800.63 × 116,172.30
  4. Step 4: Simplify right side
    326,533.75x = 56,901,265,728.55
  5. Step 5: Solve for x
    x = 56,901,265,728.55/326,533.75
  6. Step 6: Final answer
    x = 174,258.45

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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.