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Finding the Fourth Proportional to 1,898,648.04, 2,621,402.76 and 1,124,527.80

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Solution

The fourth proportional to 1,898,648.04, 2,621,402.76 and 1,124,527.80 is: 1,552,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,648.04 : 2,621,402.76 = 1,124,527.80 : x
  2. Step 2: Convert to fraction form
    1,898,648.04/2,621,402.76 = 1,124,527.80/x
  3. Step 3: Cross multiply
    1,898,648.04x = 2,621,402.76 × 1,124,527.80
  4. Step 4: Simplify right side
    1,898,648.04x = 2,947,840,278,616.73
  5. Step 5: Solve for x
    x = 2,947,840,278,616.73/1,898,648.04
  6. Step 6: Final answer
    x = 1,552,599.65

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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.