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Finding the Fourth Proportional to 477,276.76, 658,602.69 and 281,012.04

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Solution

The fourth proportional to 477,276.76, 658,602.69 and 281,012.04 is: 387,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,276.76 : 658,602.69 = 281,012.04 : x
  2. Step 2: Convert to fraction form
    477,276.76/658,602.69 = 281,012.04/x
  3. Step 3: Cross multiply
    477,276.76x = 658,602.69 × 281,012.04
  4. Step 4: Simplify right side
    477,276.76x = 185,075,285,466.39
  5. Step 5: Solve for x
    x = 185,075,285,466.39/477,276.76
  6. Step 6: Final answer
    x = 387,773.51

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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.