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Finding the Fourth Proportional to 496,437.55, 685,086.78 and 270,084.67

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Solution

The fourth proportional to 496,437.55, 685,086.78 and 270,084.67 is: 372,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,437.55 : 685,086.78 = 270,084.67 : x
  2. Step 2: Convert to fraction form
    496,437.55/685,086.78 = 270,084.67/x
  3. Step 3: Cross multiply
    496,437.55x = 685,086.78 × 270,084.67
  4. Step 4: Simplify right side
    496,437.55x = 185,031,436,897.66
  5. Step 5: Solve for x
    x = 185,031,436,897.66/496,437.55
  6. Step 6: Final answer
    x = 372,718.46

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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.