Home / 526,821.26-727,014.60-285,105.57

Finding the Fourth Proportional to 526,821.26, 727,014.60 and 285,105.57

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Solution

The fourth proportional to 526,821.26, 727,014.60 and 285,105.57 is: 393,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,821.26 : 727,014.60 = 285,105.57 : x
  2. Step 2: Convert to fraction form
    526,821.26/727,014.60 = 285,105.57/x
  3. Step 3: Cross multiply
    526,821.26x = 727,014.60 × 285,105.57
  4. Step 4: Simplify right side
    526,821.26x = 207,275,911,931.32
  5. Step 5: Solve for x
    x = 207,275,911,931.32/526,821.26
  6. Step 6: Final answer
    x = 393,446.37

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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.