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Finding the Fourth Proportional to 1,685,741, 2,528,614.07 and 688,469

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Solution

The fourth proportional to 1,685,741, 2,528,614.07 and 688,469 is: 1,032,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,741 : 2,528,614.07 = 688,469 : x
  2. Step 2: Convert to fraction form
    1,685,741/2,528,614.07 = 688,469/x
  3. Step 3: Cross multiply
    1,685,741x = 2,528,614.07 × 688,469
  4. Step 4: Simplify right side
    1,685,741x = 1,740,872,400,158.83
  5. Step 5: Solve for x
    x = 1,740,872,400,158.83/1,685,741
  6. Step 6: Final answer
    x = 1,032,704.55

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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.