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Finding the Fourth Proportional to 577,905.90, 866,842.65 and 262,362.30

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Solution

The fourth proportional to 577,905.90, 866,842.65 and 262,362.30 is: 393,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,905.90 : 866,842.65 = 262,362.30 : x
  2. Step 2: Convert to fraction form
    577,905.90/866,842.65 = 262,362.30/x
  3. Step 3: Cross multiply
    577,905.90x = 866,842.65 × 262,362.30
  4. Step 4: Simplify right side
    577,905.90x = 227,426,831,392.10
  5. Step 5: Solve for x
    x = 227,426,831,392.10/577,905.90
  6. Step 6: Final answer
    x = 393,536.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.