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Finding the Fourth Proportional to 1,232,259.40, 1,845,764.70 and 996,063.40

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Solution

The fourth proportional to 1,232,259.40, 1,845,764.70 and 996,063.40 is: 1,491,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,259.40 : 1,845,764.70 = 996,063.40 : x
  2. Step 2: Convert to fraction form
    1,232,259.40/1,845,764.70 = 996,063.40/x
  3. Step 3: Cross multiply
    1,232,259.40x = 1,845,764.70 × 996,063.40
  4. Step 4: Simplify right side
    1,232,259.40x = 1,838,498,662,681.98
  5. Step 5: Solve for x
    x = 1,838,498,662,681.98/1,232,259.40
  6. Step 6: Final answer
    x = 1,491,973.74

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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.