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Finding the Fourth Proportional to 450,343.56, 621,412.73 and 269,017.00

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Solution

The fourth proportional to 450,343.56, 621,412.73 and 269,017.00 is: 371,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,343.56 : 621,412.73 = 269,017.00 : x
  2. Step 2: Convert to fraction form
    450,343.56/621,412.73 = 269,017.00/x
  3. Step 3: Cross multiply
    450,343.56x = 621,412.73 × 269,017.00
  4. Step 4: Simplify right side
    450,343.56x = 167,170,588,009.83
  5. Step 5: Solve for x
    x = 167,170,588,009.83/450,343.56
  6. Step 6: Final answer
    x = 371,206.79

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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.