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Finding the Fourth Proportional to 289,518.26, 399,533.01 and 162,194.90

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Solution

The fourth proportional to 289,518.26, 399,533.01 and 162,194.90 is: 223,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,518.26 : 399,533.01 = 162,194.90 : x
  2. Step 2: Convert to fraction form
    289,518.26/399,533.01 = 162,194.90/x
  3. Step 3: Cross multiply
    289,518.26x = 399,533.01 × 162,194.90
  4. Step 4: Simplify right side
    289,518.26x = 64,802,216,603.65
  5. Step 5: Solve for x
    x = 64,802,216,603.65/289,518.26
  6. Step 6: Final answer
    x = 223,827.74

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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.