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Finding the Fourth Proportional to 486,096.90, 729,145.35 and 249,900.90

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Solution

The fourth proportional to 486,096.90, 729,145.35 and 249,900.90 is: 374,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,096.90 : 729,145.35 = 249,900.90 : x
  2. Step 2: Convert to fraction form
    486,096.90/729,145.35 = 249,900.90/x
  3. Step 3: Cross multiply
    486,096.90x = 729,145.35 × 249,900.90
  4. Step 4: Simplify right side
    486,096.90x = 182,214,079,195.82
  5. Step 5: Solve for x
    x = 182,214,079,195.82/486,096.90
  6. Step 6: Final answer
    x = 374,851.35

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Double scale
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Similar ratio
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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.