Home / 929,790.77-1,283,143.38-516,334.50

Finding the Fourth Proportional to 929,790.77, 1,283,143.38 and 516,334.50

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Solution

The fourth proportional to 929,790.77, 1,283,143.38 and 516,334.50 is: 712,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,790.77 : 1,283,143.38 = 516,334.50 : x
  2. Step 2: Convert to fraction form
    929,790.77/1,283,143.38 = 516,334.50/x
  3. Step 3: Cross multiply
    929,790.77x = 1,283,143.38 × 516,334.50
  4. Step 4: Simplify right side
    929,790.77x = 662,531,195,540.61
  5. Step 5: Solve for x
    x = 662,531,195,540.61/929,790.77
  6. Step 6: Final answer
    x = 712,559.45

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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.