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Finding the Fourth Proportional to 439,941.95, 607,119.90 and 238,737.95

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Solution

The fourth proportional to 439,941.95, 607,119.90 and 238,737.95 is: 329,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,941.95 : 607,119.90 = 238,737.95 : x
  2. Step 2: Convert to fraction form
    439,941.95/607,119.90 = 238,737.95/x
  3. Step 3: Cross multiply
    439,941.95x = 607,119.90 × 238,737.95
  4. Step 4: Simplify right side
    439,941.95x = 144,942,560,330.21
  5. Step 5: Solve for x
    x = 144,942,560,330.21/439,941.95
  6. Step 6: Final answer
    x = 329,458.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.