Home / 526,825.80-727,021.48-285,108.32

Finding the Fourth Proportional to 526,825.80, 727,021.48 and 285,108.32

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Solution

The fourth proportional to 526,825.80, 727,021.48 and 285,108.32 is: 393,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,825.80 : 727,021.48 = 285,108.32 : x
  2. Step 2: Convert to fraction form
    526,825.80/727,021.48 = 285,108.32/x
  3. Step 3: Cross multiply
    526,825.80x = 727,021.48 × 285,108.32
  4. Step 4: Simplify right side
    526,825.80x = 207,279,872,766.71
  5. Step 5: Solve for x
    x = 207,279,872,766.71/526,825.80
  6. Step 6: Final answer
    x = 393,450.50

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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.