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Finding the Fourth Proportional to 432,015.70, 603,422.30 and 432,015.70

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Solution

The fourth proportional to 432,015.70, 603,422.30 and 432,015.70 is: 603,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,015.70 : 603,422.30 = 432,015.70 : x
  2. Step 2: Convert to fraction form
    432,015.70/603,422.30 = 432,015.70/x
  3. Step 3: Cross multiply
    432,015.70x = 603,422.30 × 432,015.70
  4. Step 4: Simplify right side
    432,015.70x = 260,687,907,330.11
  5. Step 5: Solve for x
    x = 260,687,907,330.11/432,015.70
  6. Step 6: Final answer
    x = 603,422.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.