Home / 1,208,331.55-1,667,540.35-664,508.72

Finding the Fourth Proportional to 1,208,331.55, 1,667,540.35 and 664,508.72

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Solution

The fourth proportional to 1,208,331.55, 1,667,540.35 and 664,508.72 is: 917,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,331.55 : 1,667,540.35 = 664,508.72 : x
  2. Step 2: Convert to fraction form
    1,208,331.55/1,667,540.35 = 664,508.72/x
  3. Step 3: Cross multiply
    1,208,331.55x = 1,667,540.35 × 664,508.72
  4. Step 4: Simplify right side
    1,208,331.55x = 1,108,095,108,526.34
  5. Step 5: Solve for x
    x = 1,108,095,108,526.34/1,208,331.55
  6. Step 6: Final answer
    x = 917,045.58

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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.