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Finding the Fourth Proportional to 633,082.72, 873,656.70 and 346,629.46

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Solution

The fourth proportional to 633,082.72, 873,656.70 and 346,629.46 is: 478,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,082.72 : 873,656.70 = 346,629.46 : x
  2. Step 2: Convert to fraction form
    633,082.72/873,656.70 = 346,629.46/x
  3. Step 3: Cross multiply
    633,082.72x = 873,656.70 × 346,629.46
  4. Step 4: Simplify right side
    633,082.72x = 302,835,150,146.38
  5. Step 5: Solve for x
    x = 302,835,150,146.38/633,082.72
  6. Step 6: Final answer
    x = 478,350.05

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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.