Home / 783,719.28-1,081,650.76-477,973.12

Finding the Fourth Proportional to 783,719.28, 1,081,650.76 and 477,973.12

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Solution

The fourth proportional to 783,719.28, 1,081,650.76 and 477,973.12 is: 659,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,719.28 : 1,081,650.76 = 477,973.12 : x
  2. Step 2: Convert to fraction form
    783,719.28/1,081,650.76 = 477,973.12/x
  3. Step 3: Cross multiply
    783,719.28x = 1,081,650.76 × 477,973.12
  4. Step 4: Simplify right side
    783,719.28x = 516,999,988,507.57
  5. Step 5: Solve for x
    x = 516,999,988,507.57/783,719.28
  6. Step 6: Final answer
    x = 659,674.96

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Double scale
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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.