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Finding the Fourth Proportional to 452,580.45, 678,870.66 and 115,621.84

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Solution

The fourth proportional to 452,580.45, 678,870.66 and 115,621.84 is: 173,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,580.45 : 678,870.66 = 115,621.84 : x
  2. Step 2: Convert to fraction form
    452,580.45/678,870.66 = 115,621.84/x
  3. Step 3: Cross multiply
    452,580.45x = 678,870.66 × 115,621.84
  4. Step 4: Simplify right side
    452,580.45x = 78,492,274,831.21
  5. Step 5: Solve for x
    x = 78,492,274,831.21/452,580.45
  6. Step 6: Final answer
    x = 173,432.76

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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.