Home / 1,141,065.36-1,711,617.48-431,427.60

Finding the Fourth Proportional to 1,141,065.36, 1,711,617.48 and 431,427.60

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Solution

The fourth proportional to 1,141,065.36, 1,711,617.48 and 431,427.60 is: 647,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,065.36 : 1,711,617.48 = 431,427.60 : x
  2. Step 2: Convert to fraction form
    1,141,065.36/1,711,617.48 = 431,427.60/x
  3. Step 3: Cross multiply
    1,141,065.36x = 1,711,617.48 × 431,427.60
  4. Step 4: Simplify right side
    1,141,065.36x = 738,439,021,514.45
  5. Step 5: Solve for x
    x = 738,439,021,514.45/1,141,065.36
  6. Step 6: Final answer
    x = 647,148.75

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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.