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Finding the Fourth Proportional to 316,567.38, 436,845.72 and 173,299.74

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Solution

The fourth proportional to 316,567.38, 436,845.72 and 173,299.74 is: 239,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,567.38 : 436,845.72 = 173,299.74 : x
  2. Step 2: Convert to fraction form
    316,567.38/436,845.72 = 173,299.74/x
  3. Step 3: Cross multiply
    316,567.38x = 436,845.72 × 173,299.74
  4. Step 4: Simplify right side
    316,567.38x = 75,705,249,696.11
  5. Step 5: Solve for x
    x = 75,705,249,696.11/316,567.38
  6. Step 6: Final answer
    x = 239,144.19

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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.