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Finding the Fourth Proportional to 307,568.40, 461,352.60 and 228,836.40

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Solution

The fourth proportional to 307,568.40, 461,352.60 and 228,836.40 is: 343,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,568.40 : 461,352.60 = 228,836.40 : x
  2. Step 2: Convert to fraction form
    307,568.40/461,352.60 = 228,836.40/x
  3. Step 3: Cross multiply
    307,568.40x = 461,352.60 × 228,836.40
  4. Step 4: Simplify right side
    307,568.40x = 105,574,268,114.64
  5. Step 5: Solve for x
    x = 105,574,268,114.64/307,568.40
  6. Step 6: Final answer
    x = 343,254.60

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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.