Home / 1,179,002.70-1,768,504.05-431,340.30

Finding the Fourth Proportional to 1,179,002.70, 1,768,504.05 and 431,340.30

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Solution

The fourth proportional to 1,179,002.70, 1,768,504.05 and 431,340.30 is: 647,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,002.70 : 1,768,504.05 = 431,340.30 : x
  2. Step 2: Convert to fraction form
    1,179,002.70/1,768,504.05 = 431,340.30/x
  3. Step 3: Cross multiply
    1,179,002.70x = 1,768,504.05 × 431,340.30
  4. Step 4: Simplify right side
    1,179,002.70x = 762,827,067,478.22
  5. Step 5: Solve for x
    x = 762,827,067,478.22/1,179,002.70
  6. Step 6: Final answer
    x = 647,010.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,179,003.70, 1,768,505.55 and 431,341.30
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.