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Finding the Fourth Proportional to 491,134.25, 736,701.59 and 220,946.81

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Solution

The fourth proportional to 491,134.25, 736,701.59 and 220,946.81 is: 331,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,134.25 : 736,701.59 = 220,946.81 : x
  2. Step 2: Convert to fraction form
    491,134.25/736,701.59 = 220,946.81/x
  3. Step 3: Cross multiply
    491,134.25x = 736,701.59 × 220,946.81
  4. Step 4: Simplify right side
    491,134.25x = 162,771,863,101.29
  5. Step 5: Solve for x
    x = 162,771,863,101.29/491,134.25
  6. Step 6: Final answer
    x = 331,420.30

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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.