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Finding the Fourth Proportional to 1,796,750.55, 2,479,477.87 and 980,914.80

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Solution

The fourth proportional to 1,796,750.55, 2,479,477.87 and 980,914.80 is: 1,353,641.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,750.55 : 2,479,477.87 = 980,914.80 : x
  2. Step 2: Convert to fraction form
    1,796,750.55/2,479,477.87 = 980,914.80/x
  3. Step 3: Cross multiply
    1,796,750.55x = 2,479,477.87 × 980,914.80
  4. Step 4: Simplify right side
    1,796,750.55x = 2,432,156,538,955.48
  5. Step 5: Solve for x
    x = 2,432,156,538,955.48/1,796,750.55
  6. Step 6: Final answer
    x = 1,353,641.74

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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.