Home / 912,136.40-1,368,204.60-576,213.20

Finding the Fourth Proportional to 912,136.40, 1,368,204.60 and 576,213.20

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Solution

The fourth proportional to 912,136.40, 1,368,204.60 and 576,213.20 is: 864,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,136.40 : 1,368,204.60 = 576,213.20 : x
  2. Step 2: Convert to fraction form
    912,136.40/1,368,204.60 = 576,213.20/x
  3. Step 3: Cross multiply
    912,136.40x = 1,368,204.60 × 576,213.20
  4. Step 4: Simplify right side
    912,136.40x = 788,377,550,820.72
  5. Step 5: Solve for x
    x = 788,377,550,820.72/912,136.40
  6. Step 6: Final answer
    x = 864,319.80

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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.