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Finding the Fourth Proportional to 608,971.80, 853,960.20 and 608,971.80

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Solution

The fourth proportional to 608,971.80, 853,960.20 and 608,971.80 is: 853,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,971.80 : 853,960.20 = 608,971.80 : x
  2. Step 2: Convert to fraction form
    608,971.80/853,960.20 = 608,971.80/x
  3. Step 3: Cross multiply
    608,971.80x = 853,960.20 × 608,971.80
  4. Step 4: Simplify right side
    608,971.80x = 520,037,680,122.36
  5. Step 5: Solve for x
    x = 520,037,680,122.36/608,971.80
  6. Step 6: Final answer
    x = 853,960.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.