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Finding the Fourth Proportional to 314,880.16, 434,546.76 and 171,648.40

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Solution

The fourth proportional to 314,880.16, 434,546.76 and 171,648.40 is: 236,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,880.16 : 434,546.76 = 171,648.40 : x
  2. Step 2: Convert to fraction form
    314,880.16/434,546.76 = 171,648.40/x
  3. Step 3: Cross multiply
    314,880.16x = 434,546.76 × 171,648.40
  4. Step 4: Simplify right side
    314,880.16x = 74,589,256,079.18
  5. Step 5: Solve for x
    x = 74,589,256,079.18/314,880.16
  6. Step 6: Final answer
    x = 236,881.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.