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Finding the Fourth Proportional to 1,298,859.60, 1,950,913.80 and 1,254,244.80

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Solution

The fourth proportional to 1,298,859.60, 1,950,913.80 and 1,254,244.80 is: 1,883,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,859.60 : 1,950,913.80 = 1,254,244.80 : x
  2. Step 2: Convert to fraction form
    1,298,859.60/1,950,913.80 = 1,254,244.80/x
  3. Step 3: Cross multiply
    1,298,859.60x = 1,950,913.80 × 1,254,244.80
  4. Step 4: Simplify right side
    1,298,859.60x = 2,446,923,488,898.24
  5. Step 5: Solve for x
    x = 2,446,923,488,898.24/1,298,859.60
  6. Step 6: Final answer
    x = 1,883,901.45

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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.