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Finding the Fourth Proportional to 633,338.19, 873,789.53 and 361,210.39

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Solution

The fourth proportional to 633,338.19, 873,789.53 and 361,210.39 is: 498,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,338.19 : 873,789.53 = 361,210.39 : x
  2. Step 2: Convert to fraction form
    633,338.19/873,789.53 = 361,210.39/x
  3. Step 3: Cross multiply
    633,338.19x = 873,789.53 × 361,210.39
  4. Step 4: Simplify right side
    633,338.19x = 315,621,852,918.69
  5. Step 5: Solve for x
    x = 315,621,852,918.69/633,338.19
  6. Step 6: Final answer
    x = 498,346.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.