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Finding the Fourth Proportional to 651,110.40, 977,702.40 and 441,676.80

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Solution

The fourth proportional to 651,110.40, 977,702.40 and 441,676.80 is: 663,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,110.40 : 977,702.40 = 441,676.80 : x
  2. Step 2: Convert to fraction form
    651,110.40/977,702.40 = 441,676.80/x
  3. Step 3: Cross multiply
    651,110.40x = 977,702.40 × 441,676.80
  4. Step 4: Simplify right side
    651,110.40x = 431,828,467,384.32
  5. Step 5: Solve for x
    x = 431,828,467,384.32/651,110.40
  6. Step 6: Final answer
    x = 663,218.51

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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.