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Finding the Fourth Proportional to 502,509.50, 693,465.78 and 273,068.60

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Solution

The fourth proportional to 502,509.50, 693,465.78 and 273,068.60 is: 376,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,509.50 : 693,465.78 = 273,068.60 : x
  2. Step 2: Convert to fraction form
    502,509.50/693,465.78 = 273,068.60/x
  3. Step 3: Cross multiply
    502,509.50x = 693,465.78 × 273,068.60
  4. Step 4: Simplify right side
    502,509.50x = 189,363,729,692.51
  5. Step 5: Solve for x
    x = 189,363,729,692.51/502,509.50
  6. Step 6: Final answer
    x = 376,836.12

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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.