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Finding the Fourth Proportional to 1,584,579.74, 2,186,769.54 and 896,238.13

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Solution

The fourth proportional to 1,584,579.74, 2,186,769.54 and 896,238.13 is: 1,236,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,579.74 : 2,186,769.54 = 896,238.13 : x
  2. Step 2: Convert to fraction form
    1,584,579.74/2,186,769.54 = 896,238.13/x
  3. Step 3: Cross multiply
    1,584,579.74x = 2,186,769.54 × 896,238.13
  4. Step 4: Simplify right side
    1,584,579.74x = 1,959,866,243,270.56
  5. Step 5: Solve for x
    x = 1,959,866,243,270.56/1,584,579.74
  6. Step 6: Final answer
    x = 1,236,836.62

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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.