Home / 351,695.40-527,931.90-218,725.80

Finding the Fourth Proportional to 351,695.40, 527,931.90 and 218,725.80

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Solution

The fourth proportional to 351,695.40, 527,931.90 and 218,725.80 is: 328,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,695.40 : 527,931.90 = 218,725.80 : x
  2. Step 2: Convert to fraction form
    351,695.40/527,931.90 = 218,725.80/x
  3. Step 3: Cross multiply
    351,695.40x = 527,931.90 × 218,725.80
  4. Step 4: Simplify right side
    351,695.40x = 115,472,327,173.02
  5. Step 5: Solve for x
    x = 115,472,327,173.02/351,695.40
  6. Step 6: Final answer
    x = 328,330.50

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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.