Home / 824,704.05-1,236,667.87-319,501.59

Finding the Fourth Proportional to 824,704.05, 1,236,667.87 and 319,501.59

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Solution

The fourth proportional to 824,704.05, 1,236,667.87 and 319,501.59 is: 479,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,704.05 : 1,236,667.87 = 319,501.59 : x
  2. Step 2: Convert to fraction form
    824,704.05/1,236,667.87 = 319,501.59/x
  3. Step 3: Cross multiply
    824,704.05x = 1,236,667.87 × 319,501.59
  4. Step 4: Simplify right side
    824,704.05x = 395,117,346,528.79
  5. Step 5: Solve for x
    x = 395,117,346,528.79/824,704.05
  6. Step 6: Final answer
    x = 479,101.98

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Double scale
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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.