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Finding the Fourth Proportional to 866,452.20, 1,300,316.94 and 411,044.92

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Solution

The fourth proportional to 866,452.20, 1,300,316.94 and 411,044.92 is: 616,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,452.20 : 1,300,316.94 = 411,044.92 : x
  2. Step 2: Convert to fraction form
    866,452.20/1,300,316.94 = 411,044.92/x
  3. Step 3: Cross multiply
    866,452.20x = 1,300,316.94 × 411,044.92
  4. Step 4: Simplify right side
    866,452.20x = 534,488,672,576.95
  5. Step 5: Solve for x
    x = 534,488,672,576.95/866,452.20
  6. Step 6: Final answer
    x = 616,870.35

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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.