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Finding the Fourth Proportional to 647,652.20, 970,166.10 and 366,841.40

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Solution

The fourth proportional to 647,652.20, 970,166.10 and 366,841.40 is: 549,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,652.20 : 970,166.10 = 366,841.40 : x
  2. Step 2: Convert to fraction form
    647,652.20/970,166.10 = 366,841.40/x
  3. Step 3: Cross multiply
    647,652.20x = 970,166.10 × 366,841.40
  4. Step 4: Simplify right side
    647,652.20x = 355,897,090,356.54
  5. Step 5: Solve for x
    x = 355,897,090,356.54/647,652.20
  6. Step 6: Final answer
    x = 549,518.85

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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.