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Finding the Fourth Proportional to 608,933.80, 853,907 and 608,933.80

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Solution

The fourth proportional to 608,933.80, 853,907 and 608,933.80 is: 853,907

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,933.80 : 853,907 = 608,933.80 : x
  2. Step 2: Convert to fraction form
    608,933.80/853,907 = 608,933.80/x
  3. Step 3: Cross multiply
    608,933.80x = 853,907 × 608,933.80
  4. Step 4: Simplify right side
    608,933.80x = 519,972,834,356.60
  5. Step 5: Solve for x
    x = 519,972,834,356.60/608,933.80
  6. Step 6: Final answer
    x = 853,907

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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.