Home / 1,211,663.07-1,672,073.34-660,383.74

Finding the Fourth Proportional to 1,211,663.07, 1,672,073.34 and 660,383.74

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Solution

The fourth proportional to 1,211,663.07, 1,672,073.34 and 660,383.74 is: 911,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,663.07 : 1,672,073.34 = 660,383.74 : x
  2. Step 2: Convert to fraction form
    1,211,663.07/1,672,073.34 = 660,383.74/x
  3. Step 3: Cross multiply
    1,211,663.07x = 1,672,073.34 × 660,383.74
  4. Step 4: Simplify right side
    1,211,663.07x = 1,104,210,045,823.49
  5. Step 5: Solve for x
    x = 1,104,210,045,823.49/1,211,663.07
  6. Step 6: Final answer
    x = 911,317.74

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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.