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Finding the Fourth Proportional to 449,237.88, 619,943.54 and 245,288.16

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Solution

The fourth proportional to 449,237.88, 619,943.54 and 245,288.16 is: 338,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,237.88 : 619,943.54 = 245,288.16 : x
  2. Step 2: Convert to fraction form
    449,237.88/619,943.54 = 245,288.16/x
  3. Step 3: Cross multiply
    449,237.88x = 619,943.54 × 245,288.16
  4. Step 4: Simplify right side
    449,237.88x = 152,064,809,004.05
  5. Step 5: Solve for x
    x = 152,064,809,004.05/449,237.88
  6. Step 6: Final answer
    x = 338,495.07

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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.