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Finding the Fourth Proportional to 370,521.40, 555,766.62 and 157,230.76

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Solution

The fourth proportional to 370,521.40, 555,766.62 and 157,230.76 is: 235,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,521.40 : 555,766.62 = 157,230.76 : x
  2. Step 2: Convert to fraction form
    370,521.40/555,766.62 = 157,230.76/x
  3. Step 3: Cross multiply
    370,521.40x = 555,766.62 × 157,230.76
  4. Step 4: Simplify right side
    370,521.40x = 87,383,608,045.23
  5. Step 5: Solve for x
    x = 87,383,608,045.23/370,521.40
  6. Step 6: Final answer
    x = 235,839.57

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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.