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Finding the Fourth Proportional to 543,213.61, 749,629.11 and 301,498.27

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Solution

The fourth proportional to 543,213.61, 749,629.11 and 301,498.27 is: 416,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,213.61 : 749,629.11 = 301,498.27 : x
  2. Step 2: Convert to fraction form
    543,213.61/749,629.11 = 301,498.27/x
  3. Step 3: Cross multiply
    543,213.61x = 749,629.11 × 301,498.27
  4. Step 4: Simplify right side
    543,213.61x = 226,011,879,063.19
  5. Step 5: Solve for x
    x = 226,011,879,063.19/543,213.61
  6. Step 6: Final answer
    x = 416,064.47

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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.