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Finding the Fourth Proportional to 497,015.10, 685,888.71 and 270,660.42

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Solution

The fourth proportional to 497,015.10, 685,888.71 and 270,660.42 is: 373,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,015.10 : 685,888.71 = 270,660.42 : x
  2. Step 2: Convert to fraction form
    497,015.10/685,888.71 = 270,660.42/x
  3. Step 3: Cross multiply
    497,015.10x = 685,888.71 × 270,660.42
  4. Step 4: Simplify right side
    497,015.10x = 185,642,926,321.86
  5. Step 5: Solve for x
    x = 185,642,926,321.86/497,015.10
  6. Step 6: Final answer
    x = 373,515.67

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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.