Home / 1,285,452.59-1,927,790.55-386,655.66

Finding the Fourth Proportional to 1,285,452.59, 1,927,790.55 and 386,655.66

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Solution

The fourth proportional to 1,285,452.59, 1,927,790.55 and 386,655.66 is: 579,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,452.59 : 1,927,790.55 = 386,655.66 : x
  2. Step 2: Convert to fraction form
    1,285,452.59/1,927,790.55 = 386,655.66/x
  3. Step 3: Cross multiply
    1,285,452.59x = 1,927,790.55 × 386,655.66
  4. Step 4: Simplify right side
    1,285,452.59x = 745,391,127,452.01
  5. Step 5: Solve for x
    x = 745,391,127,452.01/1,285,452.59
  6. Step 6: Final answer
    x = 579,866.68

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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.