Home / 930,559.80-1,395,839.70-611,695.20

Finding the Fourth Proportional to 930,559.80, 1,395,839.70 and 611,695.20

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Solution

The fourth proportional to 930,559.80, 1,395,839.70 and 611,695.20 is: 917,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,559.80 : 1,395,839.70 = 611,695.20 : x
  2. Step 2: Convert to fraction form
    930,559.80/1,395,839.70 = 611,695.20/x
  3. Step 3: Cross multiply
    930,559.80x = 1,395,839.70 × 611,695.20
  4. Step 4: Simplify right side
    930,559.80x = 853,828,444,459.44
  5. Step 5: Solve for x
    x = 853,828,444,459.44/930,559.80
  6. Step 6: Final answer
    x = 917,542.80

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Double scale
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Similar ratio
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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.