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Finding the Fourth Proportional to 1,343,803,289.28, 1,854,448,524 and 725,704,601.28

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Solution

The fourth proportional to 1,343,803,289.28, 1,854,448,524 and 725,704,601.28 is: 1,001,472,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,803,289.28 : 1,854,448,524 = 725,704,601.28 : x
  2. Step 2: Convert to fraction form
    1,343,803,289.28/1,854,448,524 = 725,704,601.28/x
  3. Step 3: Cross multiply
    1,343,803,289.28x = 1,854,448,524 × 725,704,601.28
  4. Step 4: Simplify right side
    1,343,803,289.28x = 1,345,781,826,703,704,576
  5. Step 5: Solve for x
    x = 1,345,781,826,703,704,576/1,343,803,289.28
  6. Step 6: Final answer
    x = 1,001,472,341.55

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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.