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Finding the Fourth Proportional to 2,649,663.80, 3,974,711.70 and 1,133,358.20

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Solution

The fourth proportional to 2,649,663.80, 3,974,711.70 and 1,133,358.20 is: 1,700,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649,663.80 : 3,974,711.70 = 1,133,358.20 : x
  2. Step 2: Convert to fraction form
    2,649,663.80/3,974,711.70 = 1,133,358.20/x
  3. Step 3: Cross multiply
    2,649,663.80x = 3,974,711.70 × 1,133,358.20
  4. Step 4: Simplify right side
    2,649,663.80x = 4,504,772,097,830.94
  5. Step 5: Solve for x
    x = 4,504,772,097,830.94/2,649,663.80
  6. Step 6: Final answer
    x = 1,700,129.69

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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.