Home / 639,741.96-882,849.96-353,255.76

Finding the Fourth Proportional to 639,741.96, 882,849.96 and 353,255.76

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Solution

The fourth proportional to 639,741.96, 882,849.96 and 353,255.76 is: 487,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,741.96 : 882,849.96 = 353,255.76 : x
  2. Step 2: Convert to fraction form
    639,741.96/882,849.96 = 353,255.76/x
  3. Step 3: Cross multiply
    639,741.96x = 882,849.96 × 353,255.76
  4. Step 4: Simplify right side
    639,741.96x = 311,871,833,585.77
  5. Step 5: Solve for x
    x = 311,871,833,585.77/639,741.96
  6. Step 6: Final answer
    x = 487,496.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.