Home / 406,787.28-561,339.72-227,904.72

Finding the Fourth Proportional to 406,787.28, 561,339.72 and 227,904.72

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Solution

The fourth proportional to 406,787.28, 561,339.72 and 227,904.72 is: 314,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,787.28 : 561,339.72 = 227,904.72 : x
  2. Step 2: Convert to fraction form
    406,787.28/561,339.72 = 227,904.72/x
  3. Step 3: Cross multiply
    406,787.28x = 561,339.72 × 227,904.72
  4. Step 4: Simplify right side
    406,787.28x = 127,931,971,711.48
  5. Step 5: Solve for x
    x = 127,931,971,711.48/406,787.28
  6. Step 6: Final answer
    x = 314,493.54

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1.5x scale

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.