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Finding the Fourth Proportional to 626,209.23, 864,169.05 and 339,729.24

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Solution

The fourth proportional to 626,209.23, 864,169.05 and 339,729.24 is: 468,826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,209.23 : 864,169.05 = 339,729.24 : x
  2. Step 2: Convert to fraction form
    626,209.23/864,169.05 = 339,729.24/x
  3. Step 3: Cross multiply
    626,209.23x = 864,169.05 × 339,729.24
  4. Step 4: Simplify right side
    626,209.23x = 293,583,494,588.02
  5. Step 5: Solve for x
    x = 293,583,494,588.02/626,209.23
  6. Step 6: Final answer
    x = 468,826.52

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Double scale
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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.