Home / 686,113.70-946,870.04-414,176.66

Finding the Fourth Proportional to 686,113.70, 946,870.04 and 414,176.66

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Solution

The fourth proportional to 686,113.70, 946,870.04 and 414,176.66 is: 571,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,113.70 : 946,870.04 = 414,176.66 : x
  2. Step 2: Convert to fraction form
    686,113.70/946,870.04 = 414,176.66/x
  3. Step 3: Cross multiply
    686,113.70x = 946,870.04 × 414,176.66
  4. Step 4: Simplify right side
    686,113.70x = 392,171,470,621.27
  5. Step 5: Solve for x
    x = 392,171,470,621.27/686,113.70
  6. Step 6: Final answer
    x = 571,583.79

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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.