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Finding the Fourth Proportional to 507,617.66, 700,513.44 and 281,263.16

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Solution

The fourth proportional to 507,617.66, 700,513.44 and 281,263.16 is: 388,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,617.66 : 700,513.44 = 281,263.16 : x
  2. Step 2: Convert to fraction form
    507,617.66/700,513.44 = 281,263.16/x
  3. Step 3: Cross multiply
    507,617.66x = 700,513.44 × 281,263.16
  4. Step 4: Simplify right side
    507,617.66x = 197,028,623,756.87
  5. Step 5: Solve for x
    x = 197,028,623,756.87/507,617.66
  6. Step 6: Final answer
    x = 388,143.75

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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.