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Finding the Fourth Proportional to 624,978.54, 862,232.58 and 462,026.34

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Solution

The fourth proportional to 624,978.54, 862,232.58 and 462,026.34 is: 637,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,978.54 : 862,232.58 = 462,026.34 : x
  2. Step 2: Convert to fraction form
    624,978.54/862,232.58 = 462,026.34/x
  3. Step 3: Cross multiply
    624,978.54x = 862,232.58 × 462,026.34
  4. Step 4: Simplify right side
    624,978.54x = 398,374,163,166.16
  5. Step 5: Solve for x
    x = 398,374,163,166.16/624,978.54
  6. Step 6: Final answer
    x = 637,420.55

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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.