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Finding the Fourth Proportional to 885,357.80, 1,327,907.10 and 254,205.80

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Solution

The fourth proportional to 885,357.80, 1,327,907.10 and 254,205.80 is: 381,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,357.80 : 1,327,907.10 = 254,205.80 : x
  2. Step 2: Convert to fraction form
    885,357.80/1,327,907.10 = 254,205.80/x
  3. Step 3: Cross multiply
    885,357.80x = 1,327,907.10 × 254,205.80
  4. Step 4: Simplify right side
    885,357.80x = 337,561,686,681.18
  5. Step 5: Solve for x
    x = 337,561,686,681.18/885,357.80
  6. Step 6: Final answer
    x = 381,271.49

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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.