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Finding the Fourth Proportional to 316,354.71, 436,569.49 and 173,114.77

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Solution

The fourth proportional to 316,354.71, 436,569.49 and 173,114.77 is: 238,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,354.71 : 436,569.49 = 173,114.77 : x
  2. Step 2: Convert to fraction form
    316,354.71/436,569.49 = 173,114.77/x
  3. Step 3: Cross multiply
    316,354.71x = 436,569.49 × 173,114.77
  4. Step 4: Simplify right side
    316,354.71x = 75,576,626,850.37
  5. Step 5: Solve for x
    x = 75,576,626,850.37/316,354.71
  6. Step 6: Final answer
    x = 238,898.38

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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.