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Finding the Fourth Proportional to 401,029.10, 601,543.65 and 248,813.90

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Solution

The fourth proportional to 401,029.10, 601,543.65 and 248,813.90 is: 373,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,029.10 : 601,543.65 = 248,813.90 : x
  2. Step 2: Convert to fraction form
    401,029.10/601,543.65 = 248,813.90/x
  3. Step 3: Cross multiply
    401,029.10x = 601,543.65 × 248,813.90
  4. Step 4: Simplify right side
    401,029.10x = 149,672,421,576.74
  5. Step 5: Solve for x
    x = 149,672,421,576.74/401,029.10
  6. Step 6: Final answer
    x = 373,220.85

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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.