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Finding the Fourth Proportional to 552,060.96, 761,874.12 and 307,071.60

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Solution

The fourth proportional to 552,060.96, 761,874.12 and 307,071.60 is: 423,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,060.96 : 761,874.12 = 307,071.60 : x
  2. Step 2: Convert to fraction form
    552,060.96/761,874.12 = 307,071.60/x
  3. Step 3: Cross multiply
    552,060.96x = 761,874.12 × 307,071.60
  4. Step 4: Simplify right side
    552,060.96x = 233,949,905,026.99
  5. Step 5: Solve for x
    x = 233,949,905,026.99/552,060.96
  6. Step 6: Final answer
    x = 423,775.49

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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.