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Finding the Fourth Proportional to 353,534.76, 487,872.90 and 194,558.76

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Solution

The fourth proportional to 353,534.76, 487,872.90 and 194,558.76 is: 268,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,534.76 : 487,872.90 = 194,558.76 : x
  2. Step 2: Convert to fraction form
    353,534.76/487,872.90 = 194,558.76/x
  3. Step 3: Cross multiply
    353,534.76x = 487,872.90 × 194,558.76
  4. Step 4: Simplify right side
    353,534.76x = 94,919,946,461.60
  5. Step 5: Solve for x
    x = 94,919,946,461.60/353,534.76
  6. Step 6: Final answer
    x = 268,488.30

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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.