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Finding the Fourth Proportional to 417,154.68, 620,365.32 and 403,868.70

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Solution

The fourth proportional to 417,154.68, 620,365.32 and 403,868.70 is: 600,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,154.68 : 620,365.32 = 403,868.70 : x
  2. Step 2: Convert to fraction form
    417,154.68/620,365.32 = 403,868.70/x
  3. Step 3: Cross multiply
    417,154.68x = 620,365.32 × 403,868.70
  4. Step 4: Simplify right side
    417,154.68x = 250,546,135,313.48
  5. Step 5: Solve for x
    x = 250,546,135,313.48/417,154.68
  6. Step 6: Final answer
    x = 600,607.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.