Home / 828,131.10-1,242,196.65-576,188.70

Finding the Fourth Proportional to 828,131.10, 1,242,196.65 and 576,188.70

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Solution

The fourth proportional to 828,131.10, 1,242,196.65 and 576,188.70 is: 864,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,131.10 : 1,242,196.65 = 576,188.70 : x
  2. Step 2: Convert to fraction form
    828,131.10/1,242,196.65 = 576,188.70/x
  3. Step 3: Cross multiply
    828,131.10x = 1,242,196.65 × 576,188.70
  4. Step 4: Simplify right side
    828,131.10x = 715,739,672,907.86
  5. Step 5: Solve for x
    x = 715,739,672,907.86/828,131.10
  6. Step 6: Final answer
    x = 864,283.05

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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.