Home / 286,085.63-394,757.87-171,337.38

Finding the Fourth Proportional to 286,085.63, 394,757.87 and 171,337.38

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Solution

The fourth proportional to 286,085.63, 394,757.87 and 171,337.38 is: 236,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,085.63 : 394,757.87 = 171,337.38 : x
  2. Step 2: Convert to fraction form
    286,085.63/394,757.87 = 171,337.38/x
  3. Step 3: Cross multiply
    286,085.63x = 394,757.87 × 171,337.38
  4. Step 4: Simplify right side
    286,085.63x = 67,636,779,180.18
  5. Step 5: Solve for x
    x = 67,636,779,180.18/286,085.63
  6. Step 6: Final answer
    x = 236,421.45

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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.