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Finding the Fourth Proportional to 551,155.01, 826,410.74 and 213,801.46

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Solution

The fourth proportional to 551,155.01, 826,410.74 and 213,801.46 is: 320,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,155.01 : 826,410.74 = 213,801.46 : x
  2. Step 2: Convert to fraction form
    551,155.01/826,410.74 = 213,801.46/x
  3. Step 3: Cross multiply
    551,155.01x = 826,410.74 × 213,801.46
  4. Step 4: Simplify right side
    551,155.01x = 176,687,822,771.68
  5. Step 5: Solve for x
    x = 176,687,822,771.68/551,155.01
  6. Step 6: Final answer
    x = 320,577.37

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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.