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Finding the Fourth Proportional to 507,672.48, 700,586.56 and 281,317.98

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Solution

The fourth proportional to 507,672.48, 700,586.56 and 281,317.98 is: 388,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,672.48 : 700,586.56 = 281,317.98 : x
  2. Step 2: Convert to fraction form
    507,672.48/700,586.56 = 281,317.98/x
  3. Step 3: Cross multiply
    507,672.48x = 700,586.56 × 281,317.98
  4. Step 4: Simplify right side
    507,672.48x = 197,087,590,964.83
  5. Step 5: Solve for x
    x = 197,087,590,964.83/507,672.48
  6. Step 6: Final answer
    x = 388,218.00

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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.