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Finding the Fourth Proportional to 449,935.01, 620,926.89 and 245,999.51

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Solution

The fourth proportional to 449,935.01, 620,926.89 and 245,999.51 is: 339,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,935.01 : 620,926.89 = 245,999.51 : x
  2. Step 2: Convert to fraction form
    449,935.01/620,926.89 = 245,999.51/x
  3. Step 3: Cross multiply
    449,935.01x = 620,926.89 × 245,999.51
  4. Step 4: Simplify right side
    449,935.01x = 152,747,710,685.82
  5. Step 5: Solve for x
    x = 152,747,710,685.82/449,935.01
  6. Step 6: Final answer
    x = 339,488.39

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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.