Home / 783,261.92-1,081,243.04-497,221.76

Finding the Fourth Proportional to 783,261.92, 1,081,243.04 and 497,221.76

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Solution

The fourth proportional to 783,261.92, 1,081,243.04 and 497,221.76 is: 686,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,261.92 : 1,081,243.04 = 497,221.76 : x
  2. Step 2: Convert to fraction form
    783,261.92/1,081,243.04 = 497,221.76/x
  3. Step 3: Cross multiply
    783,261.92x = 1,081,243.04 × 497,221.76
  4. Step 4: Simplify right side
    783,261.92x = 537,617,567,336.55
  5. Step 5: Solve for x
    x = 537,617,567,336.55/783,261.92
  6. Step 6: Final answer
    x = 686,382.87

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1.5x scale

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.