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Finding the Fourth Proportional to 216,434.45, 324,651.65 and 58,662.90

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Solution

The fourth proportional to 216,434.45, 324,651.65 and 58,662.90 is: 87,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,434.45 : 324,651.65 = 58,662.90 : x
  2. Step 2: Convert to fraction form
    216,434.45/324,651.65 = 58,662.90/x
  3. Step 3: Cross multiply
    216,434.45x = 324,651.65 × 58,662.90
  4. Step 4: Simplify right side
    216,434.45x = 19,045,006,985.47
  5. Step 5: Solve for x
    x = 19,045,006,985.47/216,434.45
  6. Step 6: Final answer
    x = 87,994.34

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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.