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Finding the Fourth Proportional to 314,863.20, 441,741.60 and 314,863.20

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Solution

The fourth proportional to 314,863.20, 441,741.60 and 314,863.20 is: 441,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,863.20 : 441,741.60 = 314,863.20 : x
  2. Step 2: Convert to fraction form
    314,863.20/441,741.60 = 314,863.20/x
  3. Step 3: Cross multiply
    314,863.20x = 441,741.60 × 314,863.20
  4. Step 4: Simplify right side
    314,863.20x = 139,088,173,749.12
  5. Step 5: Solve for x
    x = 139,088,173,749.12/314,863.20
  6. Step 6: Final answer
    x = 441,741.60

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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.