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Finding the Fourth Proportional to 719,492.88, 1,079,286 and 239,700.24

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Solution

The fourth proportional to 719,492.88, 1,079,286 and 239,700.24 is: 359,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,492.88 : 1,079,286 = 239,700.24 : x
  2. Step 2: Convert to fraction form
    719,492.88/1,079,286 = 239,700.24/x
  3. Step 3: Cross multiply
    719,492.88x = 1,079,286 × 239,700.24
  4. Step 4: Simplify right side
    719,492.88x = 258,705,113,228.64
  5. Step 5: Solve for x
    x = 258,705,113,228.64/719,492.88
  6. Step 6: Final answer
    x = 359,565.91

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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.