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Finding the Fourth Proportional to 404,000.80, 605,482.80 and 310,040.80

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Solution

The fourth proportional to 404,000.80, 605,482.80 and 310,040.80 is: 464,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,000.80 : 605,482.80 = 310,040.80 : x
  2. Step 2: Convert to fraction form
    404,000.80/605,482.80 = 310,040.80/x
  3. Step 3: Cross multiply
    404,000.80x = 605,482.80 × 310,040.80
  4. Step 4: Simplify right side
    404,000.80x = 187,724,371,698.24
  5. Step 5: Solve for x
    x = 187,724,371,698.24/404,000.80
  6. Step 6: Final answer
    x = 464,663.37

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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.