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Finding the Fourth Proportional to 479,696.58, 719,391.78 and 195,386.58

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Solution

The fourth proportional to 479,696.58, 719,391.78 and 195,386.58 is: 293,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,696.58 : 719,391.78 = 195,386.58 : x
  2. Step 2: Convert to fraction form
    479,696.58/719,391.78 = 195,386.58/x
  3. Step 3: Cross multiply
    479,696.58x = 719,391.78 × 195,386.58
  4. Step 4: Simplify right side
    479,696.58x = 140,559,499,574.31
  5. Step 5: Solve for x
    x = 140,559,499,574.31/479,696.58
  6. Step 6: Final answer
    x = 293,017.51

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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.