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Finding the Fourth Proportional to 445,484.40, 614,173.73 and 353,907.54

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Solution

The fourth proportional to 445,484.40, 614,173.73 and 353,907.54 is: 487,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,484.40 : 614,173.73 = 353,907.54 : x
  2. Step 2: Convert to fraction form
    445,484.40/614,173.73 = 353,907.54/x
  3. Step 3: Cross multiply
    445,484.40x = 614,173.73 × 353,907.54
  4. Step 4: Simplify right side
    445,484.40x = 217,360,713,916.92
  5. Step 5: Solve for x
    x = 217,360,713,916.92/445,484.40
  6. Step 6: Final answer
    x = 487,919.92

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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.