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Finding the Fourth Proportional to 818,591.04, 1,129,356 and 496,068.48

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Solution

The fourth proportional to 818,591.04, 1,129,356 and 496,068.48 is: 684,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,591.04 : 1,129,356 = 496,068.48 : x
  2. Step 2: Convert to fraction form
    818,591.04/1,129,356 = 496,068.48/x
  3. Step 3: Cross multiply
    818,591.04x = 1,129,356 × 496,068.48
  4. Step 4: Simplify right side
    818,591.04x = 560,237,914,298.88
  5. Step 5: Solve for x
    x = 560,237,914,298.88/818,591.04
  6. Step 6: Final answer
    x = 684,392.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.