Home / 828,003.40-1,242,005.10-295,541.80

Finding the Fourth Proportional to 828,003.40, 1,242,005.10 and 295,541.80

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Solution

The fourth proportional to 828,003.40, 1,242,005.10 and 295,541.80 is: 443,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,003.40 : 1,242,005.10 = 295,541.80 : x
  2. Step 2: Convert to fraction form
    828,003.40/1,242,005.10 = 295,541.80/x
  3. Step 3: Cross multiply
    828,003.40x = 1,242,005.10 × 295,541.80
  4. Step 4: Simplify right side
    828,003.40x = 367,064,422,863.18
  5. Step 5: Solve for x
    x = 367,064,422,863.18/828,003.40
  6. Step 6: Final answer
    x = 443,312.70

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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.