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Finding the Fourth Proportional to 1,281,788.94, 1,922,793.15 and 335,158.14

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Solution

The fourth proportional to 1,281,788.94, 1,922,793.15 and 335,158.14 is: 502,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,788.94 : 1,922,793.15 = 335,158.14 : x
  2. Step 2: Convert to fraction form
    1,281,788.94/1,922,793.15 = 335,158.14/x
  3. Step 3: Cross multiply
    1,281,788.94x = 1,922,793.15 × 335,158.14
  4. Step 4: Simplify right side
    1,281,788.94x = 644,439,775,758.74
  5. Step 5: Solve for x
    x = 644,439,775,758.74/1,281,788.94
  6. Step 6: Final answer
    x = 502,765.90

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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.