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Finding the Fourth Proportional to 702,521.80, 969,482.73 and 380,231.98

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Solution

The fourth proportional to 702,521.80, 969,482.73 and 380,231.98 is: 524,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,521.80 : 969,482.73 = 380,231.98 : x
  2. Step 2: Convert to fraction form
    702,521.80/969,482.73 = 380,231.98/x
  3. Step 3: Cross multiply
    702,521.80x = 969,482.73 × 380,231.98
  4. Step 4: Simplify right side
    702,521.80x = 368,628,338,003.71
  5. Step 5: Solve for x
    x = 368,628,338,003.71/702,521.80
  6. Step 6: Final answer
    x = 524,721.56

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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.