Home / 1,185,520.37-1,777,386.31-386,324.69

Finding the Fourth Proportional to 1,185,520.37, 1,777,386.31 and 386,324.69

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Solution

The fourth proportional to 1,185,520.37, 1,777,386.31 and 386,324.69 is: 579,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,520.37 : 1,777,386.31 = 386,324.69 : x
  2. Step 2: Convert to fraction form
    1,185,520.37/1,777,386.31 = 386,324.69/x
  3. Step 3: Cross multiply
    1,185,520.37x = 1,777,386.31 × 386,324.69
  4. Step 4: Simplify right side
    1,185,520.37x = 686,648,205,368.25
  5. Step 5: Solve for x
    x = 686,648,205,368.25/1,185,520.37
  6. Step 6: Final answer
    x = 579,195.62

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Double scale
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1.5x scale

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.