Home / 320,590.96-442,431.66-193,307.56

Finding the Fourth Proportional to 320,590.96, 442,431.66 and 193,307.56

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Solution

The fourth proportional to 320,590.96, 442,431.66 and 193,307.56 is: 266,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,590.96 : 442,431.66 = 193,307.56 : x
  2. Step 2: Convert to fraction form
    320,590.96/442,431.66 = 193,307.56/x
  3. Step 3: Cross multiply
    320,590.96x = 442,431.66 × 193,307.56
  4. Step 4: Simplify right side
    320,590.96x = 85,525,384,661.35
  5. Step 5: Solve for x
    x = 85,525,384,661.35/320,590.96
  6. Step 6: Final answer
    x = 266,774.16

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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.