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Finding the Fourth Proportional to 993,544, 1,371,090.88 and 540,838.40

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Solution

The fourth proportional to 993,544, 1,371,090.88 and 540,838.40 is: 746,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,544 : 1,371,090.88 = 540,838.40 : x
  2. Step 2: Convert to fraction form
    993,544/1,371,090.88 = 540,838.40/x
  3. Step 3: Cross multiply
    993,544x = 1,371,090.88 × 540,838.40
  4. Step 4: Simplify right side
    993,544x = 741,538,597,793.79
  5. Step 5: Solve for x
    x = 741,538,597,793.79/993,544
  6. Step 6: Final answer
    x = 746,357.08

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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.