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Finding the Fourth Proportional to 367,718.13, 507,472.70 and 276,913.89

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Solution

The fourth proportional to 367,718.13, 507,472.70 and 276,913.89 is: 382,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,718.13 : 507,472.70 = 276,913.89 : x
  2. Step 2: Convert to fraction form
    367,718.13/507,472.70 = 276,913.89/x
  3. Step 3: Cross multiply
    367,718.13x = 507,472.70 × 276,913.89
  4. Step 4: Simplify right side
    367,718.13x = 140,526,238,041.23
  5. Step 5: Solve for x
    x = 140,526,238,041.23/367,718.13
  6. Step 6: Final answer
    x = 382,157.49

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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.