Home / 1,761,465.10-2,642,197.65-431,769.10

Finding the Fourth Proportional to 1,761,465.10, 2,642,197.65 and 431,769.10

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Solution

The fourth proportional to 1,761,465.10, 2,642,197.65 and 431,769.10 is: 647,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,465.10 : 2,642,197.65 = 431,769.10 : x
  2. Step 2: Convert to fraction form
    1,761,465.10/2,642,197.65 = 431,769.10/x
  3. Step 3: Cross multiply
    1,761,465.10x = 2,642,197.65 × 431,769.10
  4. Step 4: Simplify right side
    1,761,465.10x = 1,140,819,301,362.62
  5. Step 5: Solve for x
    x = 1,140,819,301,362.62/1,761,465.10
  6. Step 6: Final answer
    x = 647,653.65

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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.