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Finding the Fourth Proportional to 1,442,752, 1,991,089.92 and 806,848

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Solution

The fourth proportional to 1,442,752, 1,991,089.92 and 806,848 is: 1,113,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,752 : 1,991,089.92 = 806,848 : x
  2. Step 2: Convert to fraction form
    1,442,752/1,991,089.92 = 806,848/x
  3. Step 3: Cross multiply
    1,442,752x = 1,991,089.92 × 806,848
  4. Step 4: Simplify right side
    1,442,752x = 1,606,506,919,772.16
  5. Step 5: Solve for x
    x = 1,606,506,919,772.16/1,442,752
  6. Step 6: Final answer
    x = 1,113,501.78

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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.