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Finding the Fourth Proportional to 313,959.42, 433,300.32 and 186,633.90

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Solution

The fourth proportional to 313,959.42, 433,300.32 and 186,633.90 is: 257,576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,959.42 : 433,300.32 = 186,633.90 : x
  2. Step 2: Convert to fraction form
    313,959.42/433,300.32 = 186,633.90/x
  3. Step 3: Cross multiply
    313,959.42x = 433,300.32 × 186,633.90
  4. Step 4: Simplify right side
    313,959.42x = 80,868,528,592.85
  5. Step 5: Solve for x
    x = 80,868,528,592.85/313,959.42
  6. Step 6: Final answer
    x = 257,576.37

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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.