Home / 612,822.32-919,381.10-192,098.20

Finding the Fourth Proportional to 612,822.32, 919,381.10 and 192,098.20

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Solution

The fourth proportional to 612,822.32, 919,381.10 and 192,098.20 is: 288,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,822.32 : 919,381.10 = 192,098.20 : x
  2. Step 2: Convert to fraction form
    612,822.32/919,381.10 = 192,098.20/x
  3. Step 3: Cross multiply
    612,822.32x = 919,381.10 × 192,098.20
  4. Step 4: Simplify right side
    612,822.32x = 176,611,454,424.02
  5. Step 5: Solve for x
    x = 176,611,454,424.02/612,822.32
  6. Step 6: Final answer
    x = 288,193.57

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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.