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Finding the Fourth Proportional to 559,811.20, 839,716.80 and 335,862.40

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Solution

The fourth proportional to 559,811.20, 839,716.80 and 335,862.40 is: 503,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,811.20 : 839,716.80 = 335,862.40 : x
  2. Step 2: Convert to fraction form
    559,811.20/839,716.80 = 335,862.40/x
  3. Step 3: Cross multiply
    559,811.20x = 839,716.80 × 335,862.40
  4. Step 4: Simplify right side
    559,811.20x = 282,029,299,768.32
  5. Step 5: Solve for x
    x = 282,029,299,768.32/559,811.20
  6. Step 6: Final answer
    x = 503,793.60

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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.