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Finding the Fourth Proportional to 1,414,064, 1,951,408.64 and 778,160

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Solution

The fourth proportional to 1,414,064, 1,951,408.64 and 778,160 is: 1,073,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414,064 : 1,951,408.64 = 778,160 : x
  2. Step 2: Convert to fraction form
    1,414,064/1,951,408.64 = 778,160/x
  3. Step 3: Cross multiply
    1,414,064x = 1,951,408.64 × 778,160
  4. Step 4: Simplify right side
    1,414,064x = 1,518,508,147,302.40
  5. Step 5: Solve for x
    x = 1,518,508,147,302.40/1,414,064
  6. Step 6: Final answer
    x = 1,073,860.98

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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.