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Finding the Fourth Proportional to 316,046.32, 436,262.52 and 207,157.67

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Solution

The fourth proportional to 316,046.32, 436,262.52 and 207,157.67 is: 285,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,046.32 : 436,262.52 = 207,157.67 : x
  2. Step 2: Convert to fraction form
    316,046.32/436,262.52 = 207,157.67/x
  3. Step 3: Cross multiply
    316,046.32x = 436,262.52 × 207,157.67
  4. Step 4: Simplify right side
    316,046.32x = 90,375,129,019.03
  5. Step 5: Solve for x
    x = 90,375,129,019.03/316,046.32
  6. Step 6: Final answer
    x = 285,955.33

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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.