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Finding the Fourth Proportional to 534,329.20, 799,744.20 and 415,356.40

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Solution

The fourth proportional to 534,329.20, 799,744.20 and 415,356.40 is: 621,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,329.20 : 799,744.20 = 415,356.40 : x
  2. Step 2: Convert to fraction form
    534,329.20/799,744.20 = 415,356.40/x
  3. Step 3: Cross multiply
    534,329.20x = 799,744.20 × 415,356.40
  4. Step 4: Simplify right side
    534,329.20x = 332,178,871,832.88
  5. Step 5: Solve for x
    x = 332,178,871,832.88/534,329.20
  6. Step 6: Final answer
    x = 621,674.56

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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.