Home / 612,983.70-919,438.20-293,362.77

Finding the Fourth Proportional to 612,983.70, 919,438.20 and 293,362.77

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Solution

The fourth proportional to 612,983.70, 919,438.20 and 293,362.77 is: 440,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,983.70 : 919,438.20 = 293,362.77 : x
  2. Step 2: Convert to fraction form
    612,983.70/919,438.20 = 293,362.77/x
  3. Step 3: Cross multiply
    612,983.70x = 919,438.20 × 293,362.77
  4. Step 4: Simplify right side
    612,983.70x = 269,728,937,195.81
  5. Step 5: Solve for x
    x = 269,728,937,195.81/612,983.70
  6. Step 6: Final answer
    x = 440,026.28

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1.5x scale

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.