Home / 619,749.96-929,620.08-409,337.88

Finding the Fourth Proportional to 619,749.96, 929,620.08 and 409,337.88

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Solution

The fourth proportional to 619,749.96, 929,620.08 and 409,337.88 is: 614,003.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,749.96 : 929,620.08 = 409,337.88 : x
  2. Step 2: Convert to fraction form
    619,749.96/929,620.08 = 409,337.88/x
  3. Step 3: Cross multiply
    619,749.96x = 929,620.08 × 409,337.88
  4. Step 4: Simplify right side
    619,749.96x = 380,528,712,752.63
  5. Step 5: Solve for x
    x = 380,528,712,752.63/619,749.96
  6. Step 6: Final answer
    x = 614,003.61

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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.