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Finding the Fourth Proportional to 448,392.60, 628,216.20 and 448,392.60

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Solution

The fourth proportional to 448,392.60, 628,216.20 and 448,392.60 is: 628,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,392.60 : 628,216.20 = 448,392.60 : x
  2. Step 2: Convert to fraction form
    448,392.60/628,216.20 = 448,392.60/x
  3. Step 3: Cross multiply
    448,392.60x = 628,216.20 × 448,392.60
  4. Step 4: Simplify right side
    448,392.60x = 281,687,495,280.12
  5. Step 5: Solve for x
    x = 281,687,495,280.12/448,392.60
  6. Step 6: Final answer
    x = 628,216.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.