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Finding the Fourth Proportional to 550,931.80, 825,015.30 and 362,925.40

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Solution

The fourth proportional to 550,931.80, 825,015.30 and 362,925.40 is: 543,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,931.80 : 825,015.30 = 362,925.40 : x
  2. Step 2: Convert to fraction form
    550,931.80/825,015.30 = 362,925.40/x
  3. Step 3: Cross multiply
    550,931.80x = 825,015.30 × 362,925.40
  4. Step 4: Simplify right side
    550,931.80x = 299,419,007,758.62
  5. Step 5: Solve for x
    x = 299,419,007,758.62/550,931.80
  6. Step 6: Final answer
    x = 543,477.45

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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.