Home / 261,438.54-391,999.68-117,317.94

Finding the Fourth Proportional to 261,438.54, 391,999.68 and 117,317.94

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Solution

The fourth proportional to 261,438.54, 391,999.68 and 117,317.94 is: 175,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,438.54 : 391,999.68 = 117,317.94 : x
  2. Step 2: Convert to fraction form
    261,438.54/391,999.68 = 117,317.94/x
  3. Step 3: Cross multiply
    261,438.54x = 391,999.68 × 117,317.94
  4. Step 4: Simplify right side
    261,438.54x = 45,988,594,938.26
  5. Step 5: Solve for x
    x = 45,988,594,938.26/261,438.54
  6. Step 6: Final answer
    x = 175,905.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.