Home / 1,217,951.72-1,680,776.98-674,125.28

Finding the Fourth Proportional to 1,217,951.72, 1,680,776.98 and 674,125.28

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Solution

The fourth proportional to 1,217,951.72, 1,680,776.98 and 674,125.28 is: 930,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,951.72 : 1,680,776.98 = 674,125.28 : x
  2. Step 2: Convert to fraction form
    1,217,951.72/1,680,776.98 = 674,125.28/x
  3. Step 3: Cross multiply
    1,217,951.72x = 1,680,776.98 × 674,125.28
  4. Step 4: Simplify right side
    1,217,951.72x = 1,133,054,252,260.05
  5. Step 5: Solve for x
    x = 1,133,054,252,260.05/1,217,951.72
  6. Step 6: Final answer
    x = 930,294.88

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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.