Home / 810,130.10-1,215,195.15-277,656.35

Finding the Fourth Proportional to 810,130.10, 1,215,195.15 and 277,656.35

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Solution

The fourth proportional to 810,130.10, 1,215,195.15 and 277,656.35 is: 416,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,130.10 : 1,215,195.15 = 277,656.35 : x
  2. Step 2: Convert to fraction form
    810,130.10/1,215,195.15 = 277,656.35/x
  3. Step 3: Cross multiply
    810,130.10x = 1,215,195.15 × 277,656.35
  4. Step 4: Simplify right side
    810,130.10x = 337,406,649,886.70
  5. Step 5: Solve for x
    x = 337,406,649,886.70/810,130.10
  6. Step 6: Final answer
    x = 416,484.53

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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.