Home / 986,053.50-1,478,083.77-386,779.95

Finding the Fourth Proportional to 986,053.50, 1,478,083.77 and 386,779.95

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Solution

The fourth proportional to 986,053.50, 1,478,083.77 and 386,779.95 is: 579,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,053.50 : 1,478,083.77 = 386,779.95 : x
  2. Step 2: Convert to fraction form
    986,053.50/1,478,083.77 = 386,779.95/x
  3. Step 3: Cross multiply
    986,053.50x = 1,478,083.77 × 386,779.95
  4. Step 4: Simplify right side
    986,053.50x = 571,693,166,656.41
  5. Step 5: Solve for x
    x = 571,693,166,656.41/986,053.50
  6. Step 6: Final answer
    x = 579,779.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.