Home / 1,205,740.96-1,663,915.95-661,886

Finding the Fourth Proportional to 1,205,740.96, 1,663,915.95 and 661,886

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Solution

The fourth proportional to 1,205,740.96, 1,663,915.95 and 661,886 is: 913,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,740.96 : 1,663,915.95 = 661,886 : x
  2. Step 2: Convert to fraction form
    1,205,740.96/1,663,915.95 = 661,886/x
  3. Step 3: Cross multiply
    1,205,740.96x = 1,663,915.95 × 661,886
  4. Step 4: Simplify right side
    1,205,740.96x = 1,101,322,672,481.70
  5. Step 5: Solve for x
    x = 1,101,322,672,481.70/1,205,740.96
  6. Step 6: Final answer
    x = 913,399.07

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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.