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Finding the Fourth Proportional to 697,765.07, 963,019.94 and 425,990.51

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Solution

The fourth proportional to 697,765.07, 963,019.94 and 425,990.51 is: 587,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,765.07 : 963,019.94 = 425,990.51 : x
  2. Step 2: Convert to fraction form
    697,765.07/963,019.94 = 425,990.51/x
  3. Step 3: Cross multiply
    697,765.07x = 963,019.94 × 425,990.51
  4. Step 4: Simplify right side
    697,765.07x = 410,237,348,435.72
  5. Step 5: Solve for x
    x = 410,237,348,435.72/697,765.07
  6. Step 6: Final answer
    x = 587,930.48

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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.