Home / 751,543.80-1,127,315.70-190,578.30

Finding the Fourth Proportional to 751,543.80, 1,127,315.70 and 190,578.30

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Solution

The fourth proportional to 751,543.80, 1,127,315.70 and 190,578.30 is: 285,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,543.80 : 1,127,315.70 = 190,578.30 : x
  2. Step 2: Convert to fraction form
    751,543.80/1,127,315.70 = 190,578.30/x
  3. Step 3: Cross multiply
    751,543.80x = 1,127,315.70 × 190,578.30
  4. Step 4: Simplify right side
    751,543.80x = 214,841,909,669.31
  5. Step 5: Solve for x
    x = 214,841,909,669.31/751,543.80
  6. Step 6: Final answer
    x = 285,867.45

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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.