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Finding the Fourth Proportional to 572,359.66, 789,405.63 and 507,018.37

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Solution

The fourth proportional to 572,359.66, 789,405.63 and 507,018.37 is: 699,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,359.66 : 789,405.63 = 507,018.37 : x
  2. Step 2: Convert to fraction form
    572,359.66/789,405.63 = 507,018.37/x
  3. Step 3: Cross multiply
    572,359.66x = 789,405.63 × 507,018.37
  4. Step 4: Simplify right side
    572,359.66x = 400,243,155,791.42
  5. Step 5: Solve for x
    x = 400,243,155,791.42/572,359.66
  6. Step 6: Final answer
    x = 699,286.10

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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.