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Finding the Fourth Proportional to 563,561.90, 777,745.24 and 308,923.82

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Solution

The fourth proportional to 563,561.90, 777,745.24 and 308,923.82 is: 426,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,561.90 : 777,745.24 = 308,923.82 : x
  2. Step 2: Convert to fraction form
    563,561.90/777,745.24 = 308,923.82/x
  3. Step 3: Cross multiply
    563,561.90x = 777,745.24 × 308,923.82
  4. Step 4: Simplify right side
    563,561.90x = 240,264,028,983.00
  5. Step 5: Solve for x
    x = 240,264,028,983.00/563,561.90
  6. Step 6: Final answer
    x = 426,331.21

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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.