Home / 769,238.96-1,153,997.86-385,188.08

Finding the Fourth Proportional to 769,238.96, 1,153,997.86 and 385,188.08

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Solution

The fourth proportional to 769,238.96, 1,153,997.86 and 385,188.08 is: 577,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,238.96 : 1,153,997.86 = 385,188.08 : x
  2. Step 2: Convert to fraction form
    769,238.96/1,153,997.86 = 385,188.08/x
  3. Step 3: Cross multiply
    769,238.96x = 1,153,997.86 × 385,188.08
  4. Step 4: Simplify right side
    769,238.96x = 444,506,220,017.51
  5. Step 5: Solve for x
    x = 444,506,220,017.51/769,238.96
  6. Step 6: Final answer
    x = 577,851.93

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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.