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Finding the Fourth Proportional to 705,348.56, 972,722.77 and 543,944.72

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Solution

The fourth proportional to 705,348.56, 972,722.77 and 543,944.72 is: 750,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,348.56 : 972,722.77 = 543,944.72 : x
  2. Step 2: Convert to fraction form
    705,348.56/972,722.77 = 543,944.72/x
  3. Step 3: Cross multiply
    705,348.56x = 972,722.77 × 543,944.72
  4. Step 4: Simplify right side
    705,348.56x = 529,107,408,541.80
  5. Step 5: Solve for x
    x = 529,107,408,541.80/705,348.56
  6. Step 6: Final answer
    x = 750,136.09

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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.