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Finding the Fourth Proportional to 454,020.30, 681,030.45 and 404,156.70

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Solution

The fourth proportional to 454,020.30, 681,030.45 and 404,156.70 is: 606,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,020.30 : 681,030.45 = 404,156.70 : x
  2. Step 2: Convert to fraction form
    454,020.30/681,030.45 = 404,156.70/x
  3. Step 3: Cross multiply
    454,020.30x = 681,030.45 × 404,156.70
  4. Step 4: Simplify right side
    454,020.30x = 275,243,019,271.52
  5. Step 5: Solve for x
    x = 275,243,019,271.52/454,020.30
  6. Step 6: Final answer
    x = 606,235.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.