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Finding the Fourth Proportional to 1,865,109.60, 2,797,664.40 and 603,842.40

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Solution

The fourth proportional to 1,865,109.60, 2,797,664.40 and 603,842.40 is: 905,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,109.60 : 2,797,664.40 = 603,842.40 : x
  2. Step 2: Convert to fraction form
    1,865,109.60/2,797,664.40 = 603,842.40/x
  3. Step 3: Cross multiply
    1,865,109.60x = 2,797,664.40 × 603,842.40
  4. Step 4: Simplify right side
    1,865,109.60x = 1,689,348,385,690.56
  5. Step 5: Solve for x
    x = 1,689,348,385,690.56/1,865,109.60
  6. Step 6: Final answer
    x = 905,763.60

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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.