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Finding the Fourth Proportional to 403,513.60, 605,124.60 and 163,526.80

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Solution

The fourth proportional to 403,513.60, 605,124.60 and 163,526.80 is: 245,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,513.60 : 605,124.60 = 163,526.80 : x
  2. Step 2: Convert to fraction form
    403,513.60/605,124.60 = 163,526.80/x
  3. Step 3: Cross multiply
    403,513.60x = 605,124.60 × 163,526.80
  4. Step 4: Simplify right side
    403,513.60x = 98,954,089,439.28
  5. Step 5: Solve for x
    x = 98,954,089,439.28/403,513.60
  6. Step 6: Final answer
    x = 245,231.11

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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.