Home / 1,211,948.00-1,672,499.88-668,103.25

Finding the Fourth Proportional to 1,211,948.00, 1,672,499.88 and 668,103.25

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Solution

The fourth proportional to 1,211,948.00, 1,672,499.88 and 668,103.25 is: 921,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,948.00 : 1,672,499.88 = 668,103.25 : x
  2. Step 2: Convert to fraction form
    1,211,948.00/1,672,499.88 = 668,103.25/x
  3. Step 3: Cross multiply
    1,211,948.00x = 1,672,499.88 × 668,103.25
  4. Step 4: Simplify right side
    1,211,948.00x = 1,117,402,609,577.84
  5. Step 5: Solve for x
    x = 1,117,402,609,577.84/1,211,948.00
  6. Step 6: Final answer
    x = 921,988.90

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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.