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Finding the Fourth Proportional to 314,811.60, 472,217.40 and 248,456.40

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Solution

The fourth proportional to 314,811.60, 472,217.40 and 248,456.40 is: 372,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,811.60 : 472,217.40 = 248,456.40 : x
  2. Step 2: Convert to fraction form
    314,811.60/472,217.40 = 248,456.40/x
  3. Step 3: Cross multiply
    314,811.60x = 472,217.40 × 248,456.40
  4. Step 4: Simplify right side
    314,811.60x = 117,325,435,221.36
  5. Step 5: Solve for x
    x = 117,325,435,221.36/314,811.60
  6. Step 6: Final answer
    x = 372,684.60

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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.