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Finding the Fourth Proportional to 543,186.56, 749,588.10 and 301,479.32

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Solution

The fourth proportional to 543,186.56, 749,588.10 and 301,479.32 is: 416,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,186.56 : 749,588.10 = 301,479.32 : x
  2. Step 2: Convert to fraction form
    543,186.56/749,588.10 = 301,479.32/x
  3. Step 3: Cross multiply
    543,186.56x = 749,588.10 × 301,479.32
  4. Step 4: Simplify right side
    543,186.56x = 225,985,308,042.99
  5. Step 5: Solve for x
    x = 225,985,308,042.99/543,186.56
  6. Step 6: Final answer
    x = 416,036.27

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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.