Home / 1,211,895.16-1,672,405.86-660,609.52

Finding the Fourth Proportional to 1,211,895.16, 1,672,405.86 and 660,609.52

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Solution

The fourth proportional to 1,211,895.16, 1,672,405.86 and 660,609.52 is: 911,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,895.16 : 1,672,405.86 = 660,609.52 : x
  2. Step 2: Convert to fraction form
    1,211,895.16/1,672,405.86 = 660,609.52/x
  3. Step 3: Cross multiply
    1,211,895.16x = 1,672,405.86 × 660,609.52
  4. Step 4: Simplify right side
    1,211,895.16x = 1,104,807,232,419.79
  5. Step 5: Solve for x
    x = 1,104,807,232,419.79/1,211,895.16
  6. Step 6: Final answer
    x = 911,635.98

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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.