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Finding the Fourth Proportional to 407,856.80, 610,800.74 and 245,283.32

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Solution

The fourth proportional to 407,856.80, 610,800.74 and 245,283.32 is: 367,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,856.80 : 610,800.74 = 245,283.32 : x
  2. Step 2: Convert to fraction form
    407,856.80/610,800.74 = 245,283.32/x
  3. Step 3: Cross multiply
    407,856.80x = 610,800.74 × 245,283.32
  4. Step 4: Simplify right side
    407,856.80x = 149,819,233,365.66
  5. Step 5: Solve for x
    x = 149,819,233,365.66/407,856.80
  6. Step 6: Final answer
    x = 367,332.93

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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.