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Finding the Fourth Proportional to 676,570.46, 933,667.16 and 404,638.31

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Solution

The fourth proportional to 676,570.46, 933,667.16 and 404,638.31 is: 558,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,570.46 : 933,667.16 = 404,638.31 : x
  2. Step 2: Convert to fraction form
    676,570.46/933,667.16 = 404,638.31/x
  3. Step 3: Cross multiply
    676,570.46x = 933,667.16 × 404,638.31
  4. Step 4: Simplify right side
    676,570.46x = 377,797,502,035.88
  5. Step 5: Solve for x
    x = 377,797,502,035.88/676,570.46
  6. Step 6: Final answer
    x = 558,400.82

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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.