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Finding the Fourth Proportional to 401,973.54, 554,725.02 and 220,704.06

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Solution

The fourth proportional to 401,973.54, 554,725.02 and 220,704.06 is: 304,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,973.54 : 554,725.02 = 220,704.06 : x
  2. Step 2: Convert to fraction form
    401,973.54/554,725.02 = 220,704.06/x
  3. Step 3: Cross multiply
    401,973.54x = 554,725.02 × 220,704.06
  4. Step 4: Simplify right side
    401,973.54x = 122,430,064,097.58
  5. Step 5: Solve for x
    x = 122,430,064,097.58/401,973.54
  6. Step 6: Final answer
    x = 304,572.45

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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.