Home / 529,623.77-730,850.45-287,904.38

Finding the Fourth Proportional to 529,623.77, 730,850.45 and 287,904.38

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Solution

The fourth proportional to 529,623.77, 730,850.45 and 287,904.38 is: 397,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,623.77 : 730,850.45 = 287,904.38 : x
  2. Step 2: Convert to fraction form
    529,623.77/730,850.45 = 287,904.38/x
  3. Step 3: Cross multiply
    529,623.77x = 730,850.45 × 287,904.38
  4. Step 4: Simplify right side
    529,623.77x = 210,415,040,586.20
  5. Step 5: Solve for x
    x = 210,415,040,586.20/529,623.77
  6. Step 6: Final answer
    x = 397,291.54

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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.