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Finding the Fourth Proportional to 543,978.23, 750,676.29 and 302,261.42

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Solution

The fourth proportional to 543,978.23, 750,676.29 and 302,261.42 is: 417,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,978.23 : 750,676.29 = 302,261.42 : x
  2. Step 2: Convert to fraction form
    543,978.23/750,676.29 = 302,261.42/x
  3. Step 3: Cross multiply
    543,978.23x = 750,676.29 × 302,261.42
  4. Step 4: Simplify right side
    543,978.23x = 226,900,477,622.35
  5. Step 5: Solve for x
    x = 226,900,477,622.35/543,978.23
  6. Step 6: Final answer
    x = 417,113.16

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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.