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Finding the Fourth Proportional to 541,977.54, 812,673.09 and 430,375.74

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Solution

The fourth proportional to 541,977.54, 812,673.09 and 430,375.74 is: 645,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,977.54 : 812,673.09 = 430,375.74 : x
  2. Step 2: Convert to fraction form
    541,977.54/812,673.09 = 430,375.74/x
  3. Step 3: Cross multiply
    541,977.54x = 812,673.09 × 430,375.74
  4. Step 4: Simplify right side
    541,977.54x = 349,754,782,486.84
  5. Step 5: Solve for x
    x = 349,754,782,486.84/541,977.54
  6. Step 6: Final answer
    x = 645,330.77

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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.