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Finding the Fourth Proportional to 367,218.86, 550,721.58 and 153,980.90

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Solution

The fourth proportional to 367,218.86, 550,721.58 and 153,980.90 is: 230,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,218.86 : 550,721.58 = 153,980.90 : x
  2. Step 2: Convert to fraction form
    367,218.86/550,721.58 = 153,980.90/x
  3. Step 3: Cross multiply
    367,218.86x = 550,721.58 × 153,980.90
  4. Step 4: Simplify right side
    367,218.86x = 84,800,604,537.82
  5. Step 5: Solve for x
    x = 84,800,604,537.82/367,218.86
  6. Step 6: Final answer
    x = 230,926.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.