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Finding the Fourth Proportional to 432,014.70, 603,420.90 and 432,014.70

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Solution

The fourth proportional to 432,014.70, 603,420.90 and 432,014.70 is: 603,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,014.70 : 603,420.90 = 432,014.70 : x
  2. Step 2: Convert to fraction form
    432,014.70/603,420.90 = 432,014.70/x
  3. Step 3: Cross multiply
    432,014.70x = 603,420.90 × 432,014.70
  4. Step 4: Simplify right side
    432,014.70x = 260,686,699,087.23
  5. Step 5: Solve for x
    x = 260,686,699,087.23/432,014.70
  6. Step 6: Final answer
    x = 603,420.90

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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.