Home / 1,212,173.64-1,672,874.78-668,308.39

Finding the Fourth Proportional to 1,212,173.64, 1,672,874.78 and 668,308.39

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Solution

The fourth proportional to 1,212,173.64, 1,672,874.78 and 668,308.39 is: 922,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,173.64 : 1,672,874.78 = 668,308.39 : x
  2. Step 2: Convert to fraction form
    1,212,173.64/1,672,874.78 = 668,308.39/x
  3. Step 3: Cross multiply
    1,212,173.64x = 1,672,874.78 × 668,308.39
  4. Step 4: Simplify right side
    1,212,173.64x = 1,117,996,243,369.68
  5. Step 5: Solve for x
    x = 1,117,996,243,369.68/1,212,173.64
  6. Step 6: Final answer
    x = 922,307.01

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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.