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Finding the Fourth Proportional to 936,266.80, 1,404,205.80 and 403,805.20

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Solution

The fourth proportional to 936,266.80, 1,404,205.80 and 403,805.20 is: 605,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,266.80 : 1,404,205.80 = 403,805.20 : x
  2. Step 2: Convert to fraction form
    936,266.80/1,404,205.80 = 403,805.20/x
  3. Step 3: Cross multiply
    936,266.80x = 1,404,205.80 × 403,805.20
  4. Step 4: Simplify right side
    936,266.80x = 567,025,603,910.16
  5. Step 5: Solve for x
    x = 567,025,603,910.16/936,266.80
  6. Step 6: Final answer
    x = 605,623.96

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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.