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Finding the Fourth Proportional to 685,012.36, 944,692.65 and 588,185.85

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Solution

The fourth proportional to 685,012.36, 944,692.65 and 588,185.85 is: 811,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,012.36 : 944,692.65 = 588,185.85 : x
  2. Step 2: Convert to fraction form
    685,012.36/944,692.65 = 588,185.85/x
  3. Step 3: Cross multiply
    685,012.36x = 944,692.65 × 588,185.85
  4. Step 4: Simplify right side
    685,012.36x = 555,654,849,329.00
  5. Step 5: Solve for x
    x = 555,654,849,329.00/685,012.36
  6. Step 6: Final answer
    x = 811,160.33

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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.