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Finding the Fourth Proportional to 289,653.93, 399,747.03 and 162,354.15

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Solution

The fourth proportional to 289,653.93, 399,747.03 and 162,354.15 is: 224,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,653.93 : 399,747.03 = 162,354.15 : x
  2. Step 2: Convert to fraction form
    289,653.93/399,747.03 = 162,354.15/x
  3. Step 3: Cross multiply
    289,653.93x = 399,747.03 × 162,354.15
  4. Step 4: Simplify right side
    289,653.93x = 64,900,589,270.67
  5. Step 5: Solve for x
    x = 64,900,589,270.67/289,653.93
  6. Step 6: Final answer
    x = 224,062.52

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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.