Home / 2,798,136.90-4,197,205.35-2,189,276.10

Finding the Fourth Proportional to 2,798,136.90, 4,197,205.35 and 2,189,276.10

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Solution

The fourth proportional to 2,798,136.90, 4,197,205.35 and 2,189,276.10 is: 3,283,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,136.90 : 4,197,205.35 = 2,189,276.10 : x
  2. Step 2: Convert to fraction form
    2,798,136.90/4,197,205.35 = 2,189,276.10/x
  3. Step 3: Cross multiply
    2,798,136.90x = 4,197,205.35 × 2,189,276.10
  4. Step 4: Simplify right side
    2,798,136.90x = 9,188,841,359,547.14
  5. Step 5: Solve for x
    x = 9,188,841,359,547.14/2,798,136.90
  6. Step 6: Final answer
    x = 3,283,914.15

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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.