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Finding the Fourth Proportional to 531,772.90, 733,848.90 and 290,060.66

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Solution

The fourth proportional to 531,772.90, 733,848.90 and 290,060.66 is: 400,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,772.90 : 733,848.90 = 290,060.66 : x
  2. Step 2: Convert to fraction form
    531,772.90/733,848.90 = 290,060.66/x
  3. Step 3: Cross multiply
    531,772.90x = 733,848.90 × 290,060.66
  4. Step 4: Simplify right side
    531,772.90x = 212,860,697,021.17
  5. Step 5: Solve for x
    x = 212,860,697,021.17/531,772.90
  6. Step 6: Final answer
    x = 400,284.97

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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.