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Finding the Fourth Proportional to 707,994.52, 977,021.06 and 385,708.52

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Solution

The fourth proportional to 707,994.52, 977,021.06 and 385,708.52 is: 532,271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,994.52 : 977,021.06 = 385,708.52 : x
  2. Step 2: Convert to fraction form
    707,994.52/977,021.06 = 385,708.52/x
  3. Step 3: Cross multiply
    707,994.52x = 977,021.06 × 385,708.52
  4. Step 4: Simplify right side
    707,994.52x = 376,845,347,061.43
  5. Step 5: Solve for x
    x = 376,845,347,061.43/707,994.52
  6. Step 6: Final answer
    x = 532,271.56

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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.