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Finding the Fourth Proportional to 290,370.12, 400,673.53 and 169,483.68

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Solution

The fourth proportional to 290,370.12, 400,673.53 and 169,483.68 is: 233,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,370.12 : 400,673.53 = 169,483.68 : x
  2. Step 2: Convert to fraction form
    290,370.12/400,673.53 = 169,483.68/x
  3. Step 3: Cross multiply
    290,370.12x = 400,673.53 × 169,483.68
  4. Step 4: Simplify right side
    290,370.12x = 67,907,624,342.99
  5. Step 5: Solve for x
    x = 67,907,624,342.99/290,370.12
  6. Step 6: Final answer
    x = 233,865.74

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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.