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Finding the Fourth Proportional to 586,298.33, 879,438.23 and 186,936.40

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Solution

The fourth proportional to 586,298.33, 879,438.23 and 186,936.40 is: 280,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,298.33 : 879,438.23 = 186,936.40 : x
  2. Step 2: Convert to fraction form
    586,298.33/879,438.23 = 186,936.40/x
  3. Step 3: Cross multiply
    586,298.33x = 879,438.23 × 186,936.40
  4. Step 4: Simplify right side
    586,298.33x = 164,399,017,604.20
  5. Step 5: Solve for x
    x = 164,399,017,604.20/586,298.33
  6. Step 6: Final answer
    x = 280,401.65

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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.