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Finding the Fourth Proportional to 707,625.59, 976,497.53 and 385,328.61

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Solution

The fourth proportional to 707,625.59, 976,497.53 and 385,328.61 is: 531,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,625.59 : 976,497.53 = 385,328.61 : x
  2. Step 2: Convert to fraction form
    707,625.59/976,497.53 = 385,328.61/x
  3. Step 3: Cross multiply
    707,625.59x = 976,497.53 × 385,328.61
  4. Step 4: Simplify right side
    707,625.59x = 376,272,433,976.69
  5. Step 5: Solve for x
    x = 376,272,433,976.69/707,625.59
  6. Step 6: Final answer
    x = 531,739.44

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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.