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Finding the Fourth Proportional to 526,798.37, 726,986.87 and 285,085.96

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Solution

The fourth proportional to 526,798.37, 726,986.87 and 285,085.96 is: 393,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,798.37 : 726,986.87 = 285,085.96 : x
  2. Step 2: Convert to fraction form
    526,798.37/726,986.87 = 285,085.96/x
  3. Step 3: Cross multiply
    526,798.37x = 726,986.87 × 285,085.96
  4. Step 4: Simplify right side
    526,798.37x = 207,253,749,741.35
  5. Step 5: Solve for x
    x = 207,253,749,741.35/526,798.37
  6. Step 6: Final answer
    x = 393,421.40

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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.