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Finding the Fourth Proportional to 1,307,290.07, 1,961,048.07 and 360,660.78

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Solution

The fourth proportional to 1,307,290.07, 1,961,048.07 and 360,660.78 is: 541,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,290.07 : 1,961,048.07 = 360,660.78 : x
  2. Step 2: Convert to fraction form
    1,307,290.07/1,961,048.07 = 360,660.78/x
  3. Step 3: Cross multiply
    1,307,290.07x = 1,961,048.07 × 360,660.78
  4. Step 4: Simplify right side
    1,307,290.07x = 707,273,126,543.70
  5. Step 5: Solve for x
    x = 707,273,126,543.70/1,307,290.07
  6. Step 6: Final answer
    x = 541,022.34

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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.