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Finding the Fourth Proportional to 705,069.36, 973,149.12 and 433,279.80

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Solution

The fourth proportional to 705,069.36, 973,149.12 and 433,279.80 is: 598,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,069.36 : 973,149.12 = 433,279.80 : x
  2. Step 2: Convert to fraction form
    705,069.36/973,149.12 = 433,279.80/x
  3. Step 3: Cross multiply
    705,069.36x = 973,149.12 × 433,279.80
  4. Step 4: Simplify right side
    705,069.36x = 421,645,856,083.78
  5. Step 5: Solve for x
    x = 421,645,856,083.78/705,069.36
  6. Step 6: Final answer
    x = 598,020.39

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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.