Home / 830,543.10-1,245,814.65-269,577.60

Finding the Fourth Proportional to 830,543.10, 1,245,814.65 and 269,577.60

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Solution

The fourth proportional to 830,543.10, 1,245,814.65 and 269,577.60 is: 404,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,543.10 : 1,245,814.65 = 269,577.60 : x
  2. Step 2: Convert to fraction form
    830,543.10/1,245,814.65 = 269,577.60/x
  3. Step 3: Cross multiply
    830,543.10x = 1,245,814.65 × 269,577.60
  4. Step 4: Simplify right side
    830,543.10x = 335,843,723,391.84
  5. Step 5: Solve for x
    x = 335,843,723,391.84/830,543.10
  6. Step 6: Final answer
    x = 404,366.40

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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.