Home / 779,769.77-1,076,022.23-440,271.53

Finding the Fourth Proportional to 779,769.77, 1,076,022.23 and 440,271.53

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Solution

The fourth proportional to 779,769.77, 1,076,022.23 and 440,271.53 is: 607,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,769.77 : 1,076,022.23 = 440,271.53 : x
  2. Step 2: Convert to fraction form
    779,769.77/1,076,022.23 = 440,271.53/x
  3. Step 3: Cross multiply
    779,769.77x = 1,076,022.23 × 440,271.53
  4. Step 4: Simplify right side
    779,769.77x = 473,741,951,314.75
  5. Step 5: Solve for x
    x = 473,741,951,314.75/779,769.77
  6. Step 6: Final answer
    x = 607,540.80

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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.