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Finding the Fourth Proportional to 1,590,840, 2,195,359.56 and 875,448

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Solution

The fourth proportional to 1,590,840, 2,195,359.56 and 875,448 is: 1,208,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,840 : 2,195,359.56 = 875,448 : x
  2. Step 2: Convert to fraction form
    1,590,840/2,195,359.56 = 875,448/x
  3. Step 3: Cross multiply
    1,590,840x = 2,195,359.56 × 875,448
  4. Step 4: Simplify right side
    1,590,840x = 1,921,923,136,082.88
  5. Step 5: Solve for x
    x = 1,921,923,136,082.88/1,590,840
  6. Step 6: Final answer
    x = 1,208,118.44

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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.