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Finding the Fourth Proportional to 723,438.82, 998,141.96 and 570,001.33

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Solution

The fourth proportional to 723,438.82, 998,141.96 and 570,001.33 is: 786,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,438.82 : 998,141.96 = 570,001.33 : x
  2. Step 2: Convert to fraction form
    723,438.82/998,141.96 = 570,001.33/x
  3. Step 3: Cross multiply
    723,438.82x = 998,141.96 × 570,001.33
  4. Step 4: Simplify right side
    723,438.82x = 568,942,236,888.09
  5. Step 5: Solve for x
    x = 568,942,236,888.09/723,438.82
  6. Step 6: Final answer
    x = 786,441.40

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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.