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Finding the Fourth Proportional to 629,421.98, 944,139.52 and 503,860.40

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Solution

The fourth proportional to 629,421.98, 944,139.52 and 503,860.40 is: 755,795.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,421.98 : 944,139.52 = 503,860.40 : x
  2. Step 2: Convert to fraction form
    629,421.98/944,139.52 = 503,860.40/x
  3. Step 3: Cross multiply
    629,421.98x = 944,139.52 × 503,860.40
  4. Step 4: Simplify right side
    629,421.98x = 475,714,516,203.01
  5. Step 5: Solve for x
    x = 475,714,516,203.01/629,421.98
  6. Step 6: Final answer
    x = 755,795.84

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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.