Home / 1,209,853.37-1,669,540.33-665,977.93

Finding the Fourth Proportional to 1,209,853.37, 1,669,540.33 and 665,977.93

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Solution

The fourth proportional to 1,209,853.37, 1,669,540.33 and 665,977.93 is: 919,017.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,853.37 : 1,669,540.33 = 665,977.93 : x
  2. Step 2: Convert to fraction form
    1,209,853.37/1,669,540.33 = 665,977.93/x
  3. Step 3: Cross multiply
    1,209,853.37x = 1,669,540.33 × 665,977.93
  4. Step 4: Simplify right side
    1,209,853.37x = 1,111,877,013,024.92
  5. Step 5: Solve for x
    x = 1,111,877,013,024.92/1,209,853.37
  6. Step 6: Final answer
    x = 919,017.99

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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.