Home / 403,897.83-557,377.20-220,136.10

Finding the Fourth Proportional to 403,897.83, 557,377.20 and 220,136.10

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Solution

The fourth proportional to 403,897.83, 557,377.20 and 220,136.10 is: 303,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,897.83 : 557,377.20 = 220,136.10 : x
  2. Step 2: Convert to fraction form
    403,897.83/557,377.20 = 220,136.10/x
  3. Step 3: Cross multiply
    403,897.83x = 557,377.20 × 220,136.10
  4. Step 4: Simplify right side
    403,897.83x = 122,698,843,036.92
  5. Step 5: Solve for x
    x = 122,698,843,036.92/403,897.83
  6. Step 6: Final answer
    x = 303,786.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.