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Finding the Fourth Proportional to 437,562.30, 655,359.30 and 260,415.30

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Solution

The fourth proportional to 437,562.30, 655,359.30 and 260,415.30 is: 390,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,562.30 : 655,359.30 = 260,415.30 : x
  2. Step 2: Convert to fraction form
    437,562.30/655,359.30 = 260,415.30/x
  3. Step 3: Cross multiply
    437,562.30x = 655,359.30 × 260,415.30
  4. Step 4: Simplify right side
    437,562.30x = 170,665,588,717.29
  5. Step 5: Solve for x
    x = 170,665,588,717.29/437,562.30
  6. Step 6: Final answer
    x = 390,037.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.