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Finding the Fourth Proportional to 437,697.42, 604,068.87 and 256,561.54

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Solution

The fourth proportional to 437,697.42, 604,068.87 and 256,561.54 is: 354,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,697.42 : 604,068.87 = 256,561.54 : x
  2. Step 2: Convert to fraction form
    437,697.42/604,068.87 = 256,561.54/x
  3. Step 3: Cross multiply
    437,697.42x = 604,068.87 × 256,561.54
  4. Step 4: Simplify right side
    437,697.42x = 154,980,839,005.19
  5. Step 5: Solve for x
    x = 154,980,839,005.19/437,697.42
  6. Step 6: Final answer
    x = 354,082.14

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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.