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Finding the Fourth Proportional to 676,469.34, 933,476.31 and 374,656.86

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Solution

The fourth proportional to 676,469.34, 933,476.31 and 374,656.86 is: 516,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,469.34 : 933,476.31 = 374,656.86 : x
  2. Step 2: Convert to fraction form
    676,469.34/933,476.31 = 374,656.86/x
  3. Step 3: Cross multiply
    676,469.34x = 933,476.31 × 374,656.86
  4. Step 4: Simplify right side
    676,469.34x = 349,733,303,188.99
  5. Step 5: Solve for x
    x = 349,733,303,188.99/676,469.34
  6. Step 6: Final answer
    x = 516,998.01

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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.