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Finding the Fourth Proportional to 707,993.52, 977,019.68 and 385,707.52

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Solution

The fourth proportional to 707,993.52, 977,019.68 and 385,707.52 is: 532,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,993.52 : 977,019.68 = 385,707.52 : x
  2. Step 2: Convert to fraction form
    707,993.52/977,019.68 = 385,707.52/x
  3. Step 3: Cross multiply
    707,993.52x = 977,019.68 × 385,707.52
  4. Step 4: Simplify right side
    707,993.52x = 376,843,837,763.99
  5. Step 5: Solve for x
    x = 376,843,837,763.99/707,993.52
  6. Step 6: Final answer
    x = 532,270.18

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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.