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Finding the Fourth Proportional to 1,748,411.71, 2,621,953.27 and 836,658.30

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Solution

The fourth proportional to 1,748,411.71, 2,621,953.27 and 836,658.30 is: 1,254,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748,411.71 : 2,621,953.27 = 836,658.30 : x
  2. Step 2: Convert to fraction form
    1,748,411.71/2,621,953.27 = 836,658.30/x
  3. Step 3: Cross multiply
    1,748,411.71x = 2,621,953.27 × 836,658.30
  4. Step 4: Simplify right side
    1,748,411.71x = 2,193,678,959,334.20
  5. Step 5: Solve for x
    x = 2,193,678,959,334.20/1,748,411.71
  6. Step 6: Final answer
    x = 1,254,669.56

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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.