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Finding the Fourth Proportional to 1,437,290.82, 1,983,470.76 and 792,728.46

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Solution

The fourth proportional to 1,437,290.82, 1,983,470.76 and 792,728.46 is: 1,093,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,290.82 : 1,983,470.76 = 792,728.46 : x
  2. Step 2: Convert to fraction form
    1,437,290.82/1,983,470.76 = 792,728.46/x
  3. Step 3: Cross multiply
    1,437,290.82x = 1,983,470.76 × 792,728.46
  4. Step 4: Simplify right side
    1,437,290.82x = 1,572,353,721,029.83
  5. Step 5: Solve for x
    x = 1,572,353,721,029.83/1,437,290.82
  6. Step 6: Final answer
    x = 1,093,970.47

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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.