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Finding the Fourth Proportional to 572,359.56, 789,405.51 and 507,018.27

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Solution

The fourth proportional to 572,359.56, 789,405.51 and 507,018.27 is: 699,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,359.56 : 789,405.51 = 507,018.27 : x
  2. Step 2: Convert to fraction form
    572,359.56/789,405.51 = 507,018.27/x
  3. Step 3: Cross multiply
    572,359.56x = 789,405.51 × 507,018.27
  4. Step 4: Simplify right side
    572,359.56x = 400,243,016,008.67
  5. Step 5: Solve for x
    x = 400,243,016,008.67/572,359.56
  6. Step 6: Final answer
    x = 699,285.98

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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.