Home / 1,212,200.64-1,672,848.72-668,355.84

Finding the Fourth Proportional to 1,212,200.64, 1,672,848.72 and 668,355.84

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Solution

The fourth proportional to 1,212,200.64, 1,672,848.72 and 668,355.84 is: 922,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,200.64 : 1,672,848.72 = 668,355.84 : x
  2. Step 2: Convert to fraction form
    1,212,200.64/1,672,848.72 = 668,355.84/x
  3. Step 3: Cross multiply
    1,212,200.64x = 1,672,848.72 × 668,355.84
  4. Step 4: Simplify right side
    1,212,200.64x = 1,118,058,211,448.52
  5. Step 5: Solve for x
    x = 1,118,058,211,448.52/1,212,200.64
  6. Step 6: Final answer
    x = 922,337.59

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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.