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Finding the Fourth Proportional to 676,570.74, 933,667.55 and 404,638.60

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Solution

The fourth proportional to 676,570.74, 933,667.55 and 404,638.60 is: 558,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,570.74 : 933,667.55 = 404,638.60 : x
  2. Step 2: Convert to fraction form
    676,570.74/933,667.55 = 404,638.60/x
  3. Step 3: Cross multiply
    676,570.74x = 933,667.55 × 404,638.60
  4. Step 4: Simplify right side
    676,570.74x = 377,797,923,605.90
  5. Step 5: Solve for x
    x = 377,797,923,605.90/676,570.74
  6. Step 6: Final answer
    x = 558,401.22

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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.