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Finding the Fourth Proportional to 707,589.36, 976,472.64 and 385,301.76

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Solution

The fourth proportional to 707,589.36, 976,472.64 and 385,301.76 is: 531,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,589.36 : 976,472.64 = 385,301.76 : x
  2. Step 2: Convert to fraction form
    707,589.36/976,472.64 = 385,301.76/x
  3. Step 3: Cross multiply
    707,589.36x = 976,472.64 × 385,301.76
  4. Step 4: Simplify right side
    707,589.36x = 376,236,626,783.85
  5. Step 5: Solve for x
    x = 376,236,626,783.85/707,589.36
  6. Step 6: Final answer
    x = 531,716.06

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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.