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Finding the Fourth Proportional to 314,780.01, 434,396.48 and 171,540.08

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Solution

The fourth proportional to 314,780.01, 434,396.48 and 171,540.08 is: 236,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,780.01 : 434,396.48 = 171,540.08 : x
  2. Step 2: Convert to fraction form
    314,780.01/434,396.48 = 171,540.08/x
  3. Step 3: Cross multiply
    314,780.01x = 434,396.48 × 171,540.08
  4. Step 4: Simplify right side
    314,780.01x = 74,516,403,901.24
  5. Step 5: Solve for x
    x = 74,516,403,901.24/314,780.01
  6. Step 6: Final answer
    x = 236,725.34

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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.