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Finding the Fourth Proportional to 314,880.83, 434,535.56 and 171,640.87

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Solution

The fourth proportional to 314,880.83, 434,535.56 and 171,640.87 is: 236,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,880.83 : 434,535.56 = 171,640.87 : x
  2. Step 2: Convert to fraction form
    314,880.83/434,535.56 = 171,640.87/x
  3. Step 3: Cross multiply
    314,880.83x = 434,535.56 × 171,640.87
  4. Step 4: Simplify right side
    314,880.83x = 74,584,062,707.71
  5. Step 5: Solve for x
    x = 74,584,062,707.71/314,880.83
  6. Step 6: Final answer
    x = 236,864.41

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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.