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Finding the Fourth Proportional to 370,012.84, 555,018.37 and 145,216.06

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Solution

The fourth proportional to 370,012.84, 555,018.37 and 145,216.06 is: 217,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,012.84 : 555,018.37 = 145,216.06 : x
  2. Step 2: Convert to fraction form
    370,012.84/555,018.37 = 145,216.06/x
  3. Step 3: Cross multiply
    370,012.84x = 555,018.37 × 145,216.06
  4. Step 4: Simplify right side
    370,012.84x = 80,597,579,168.44
  5. Step 5: Solve for x
    x = 80,597,579,168.44/370,012.84
  6. Step 6: Final answer
    x = 217,823.74

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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.