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Finding the Fourth Proportional to 257,594.04, 386,391.24 and 207,438.84

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Solution

The fourth proportional to 257,594.04, 386,391.24 and 207,438.84 is: 311,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,594.04 : 386,391.24 = 207,438.84 : x
  2. Step 2: Convert to fraction form
    257,594.04/386,391.24 = 207,438.84/x
  3. Step 3: Cross multiply
    257,594.04x = 386,391.24 × 207,438.84
  4. Step 4: Simplify right side
    257,594.04x = 80,152,550,611.76
  5. Step 5: Solve for x
    x = 80,152,550,611.76/257,594.04
  6. Step 6: Final answer
    x = 311,158.40

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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.