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Finding the Fourth Proportional to 432,008.30, 605,433.70 and 432,008.30

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Solution

The fourth proportional to 432,008.30, 605,433.70 and 432,008.30 is: 605,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,008.30 : 605,433.70 = 432,008.30 : x
  2. Step 2: Convert to fraction form
    432,008.30/605,433.70 = 432,008.30/x
  3. Step 3: Cross multiply
    432,008.30x = 605,433.70 × 432,008.30
  4. Step 4: Simplify right side
    432,008.30x = 261,552,383,499.71
  5. Step 5: Solve for x
    x = 261,552,383,499.71/432,008.30
  6. Step 6: Final answer
    x = 605,433.70

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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.