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Finding the Fourth Proportional to 980,559.60, 1,353,333.06 and 816,957.02

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Solution

The fourth proportional to 980,559.60, 1,353,333.06 and 816,957.02 is: 1,127,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,559.60 : 1,353,333.06 = 816,957.02 : x
  2. Step 2: Convert to fraction form
    980,559.60/1,353,333.06 = 816,957.02/x
  3. Step 3: Cross multiply
    980,559.60x = 1,353,333.06 × 816,957.02
  4. Step 4: Simplify right side
    980,559.60x = 1,105,614,936,998.42
  5. Step 5: Solve for x
    x = 1,105,614,936,998.42/980,559.60
  6. Step 6: Final answer
    x = 1,127,534.66

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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.