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Finding the Fourth Proportional to 257,596.04, 386,394.24 and 207,440.84

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Solution

The fourth proportional to 257,596.04, 386,394.24 and 207,440.84 is: 311,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,596.04 : 386,394.24 = 207,440.84 : x
  2. Step 2: Convert to fraction form
    257,596.04/386,394.24 = 207,440.84/x
  3. Step 3: Cross multiply
    257,596.04x = 386,394.24 × 207,440.84
  4. Step 4: Simplify right side
    257,596.04x = 80,153,945,716.76
  5. Step 5: Solve for x
    x = 80,153,945,716.76/257,596.04
  6. Step 6: Final answer
    x = 311,161.40

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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.