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Finding the Fourth Proportional to 313,801.72, 433,043.78 and 170,561.32

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Solution

The fourth proportional to 313,801.72, 433,043.78 and 170,561.32 is: 235,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,801.72 : 433,043.78 = 170,561.32 : x
  2. Step 2: Convert to fraction form
    313,801.72/433,043.78 = 170,561.32/x
  3. Step 3: Cross multiply
    313,801.72x = 433,043.78 × 170,561.32
  4. Step 4: Simplify right side
    313,801.72x = 73,860,516,799.17
  5. Step 5: Solve for x
    x = 73,860,516,799.17/313,801.72
  6. Step 6: Final answer
    x = 235,373.21

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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.