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Finding the Fourth Proportional to 707,186.96, 976,279.56 and 545,679.44

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Solution

The fourth proportional to 707,186.96, 976,279.56 and 545,679.44 is: 753,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,186.96 : 976,279.56 = 545,679.44 : x
  2. Step 2: Convert to fraction form
    707,186.96/976,279.56 = 545,679.44/x
  3. Step 3: Cross multiply
    707,186.96x = 976,279.56 × 545,679.44
  4. Step 4: Simplify right side
    707,186.96x = 532,735,683,584.25
  5. Step 5: Solve for x
    x = 532,735,683,584.25/707,186.96
  6. Step 6: Final answer
    x = 753,316.61

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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.