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Finding the Fourth Proportional to 396,145.93, 546,693.76 and 224,060.53

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Solution

The fourth proportional to 396,145.93, 546,693.76 and 224,060.53 is: 309,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,145.93 : 546,693.76 = 224,060.53 : x
  2. Step 2: Convert to fraction form
    396,145.93/546,693.76 = 224,060.53/x
  3. Step 3: Cross multiply
    396,145.93x = 546,693.76 × 224,060.53
  4. Step 4: Simplify right side
    396,145.93x = 122,492,491,686.41
  5. Step 5: Solve for x
    x = 122,492,491,686.41/396,145.93
  6. Step 6: Final answer
    x = 309,210.53

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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.