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Finding the Fourth Proportional to 607,321.80, 910,545.30 and 341,163.90

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Solution

The fourth proportional to 607,321.80, 910,545.30 and 341,163.90 is: 511,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,321.80 : 910,545.30 = 341,163.90 : x
  2. Step 2: Convert to fraction form
    607,321.80/910,545.30 = 341,163.90/x
  3. Step 3: Cross multiply
    607,321.80x = 910,545.30 × 341,163.90
  4. Step 4: Simplify right side
    607,321.80x = 310,645,185,674.67
  5. Step 5: Solve for x
    x = 310,645,185,674.67/607,321.80
  6. Step 6: Final answer
    x = 511,500.14

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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.