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Finding the Fourth Proportional to 430,001.40, 644,807.70 and 193,222.20

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Solution

The fourth proportional to 430,001.40, 644,807.70 and 193,222.20 is: 289,745.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,001.40 : 644,807.70 = 193,222.20 : x
  2. Step 2: Convert to fraction form
    430,001.40/644,807.70 = 193,222.20/x
  3. Step 3: Cross multiply
    430,001.40x = 644,807.70 × 193,222.20
  4. Step 4: Simplify right side
    430,001.40x = 124,591,162,370.94
  5. Step 5: Solve for x
    x = 124,591,162,370.94/430,001.40
  6. Step 6: Final answer
    x = 289,745.95

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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.