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Finding the Fourth Proportional to 830,529.30, 1,245,793.95 and 814,782.90

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Solution

The fourth proportional to 830,529.30, 1,245,793.95 and 814,782.90 is: 1,222,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,529.30 : 1,245,793.95 = 814,782.90 : x
  2. Step 2: Convert to fraction form
    830,529.30/1,245,793.95 = 814,782.90/x
  3. Step 3: Cross multiply
    830,529.30x = 1,245,793.95 × 814,782.90
  4. Step 4: Simplify right side
    830,529.30x = 1,015,051,607,383.46
  5. Step 5: Solve for x
    x = 1,015,051,607,383.46/830,529.30
  6. Step 6: Final answer
    x = 1,222,174.35

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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.