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Finding the Fourth Proportional to 707,817.56, 976,754.58 and 385,526.12

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Solution

The fourth proportional to 707,817.56, 976,754.58 and 385,526.12 is: 532,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,817.56 : 976,754.58 = 385,526.12 : x
  2. Step 2: Convert to fraction form
    707,817.56/976,754.58 = 385,526.12/x
  3. Step 3: Cross multiply
    707,817.56x = 976,754.58 × 385,526.12
  4. Step 4: Simplify right side
    707,817.56x = 376,564,403,419.63
  5. Step 5: Solve for x
    x = 376,564,403,419.63/707,817.56
  6. Step 6: Final answer
    x = 532,007.72

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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.