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Finding the Fourth Proportional to 998,225.64, 1,377,552 and 545,516.64

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Solution

The fourth proportional to 998,225.64, 1,377,552 and 545,516.64 is: 752,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,225.64 : 1,377,552 = 545,516.64 : x
  2. Step 2: Convert to fraction form
    998,225.64/1,377,552 = 545,516.64/x
  3. Step 3: Cross multiply
    998,225.64x = 1,377,552 × 545,516.64
  4. Step 4: Simplify right side
    998,225.64x = 751,477,538,465.28
  5. Step 5: Solve for x
    x = 751,477,538,465.28/998,225.64
  6. Step 6: Final answer
    x = 752,813.30

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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.