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Finding the Fourth Proportional to 907,643.70, 1,361,465.55 and 376,202.70

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Solution

The fourth proportional to 907,643.70, 1,361,465.55 and 376,202.70 is: 564,304.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,643.70 : 1,361,465.55 = 376,202.70 : x
  2. Step 2: Convert to fraction form
    907,643.70/1,361,465.55 = 376,202.70/x
  3. Step 3: Cross multiply
    907,643.70x = 1,361,465.55 × 376,202.70
  4. Step 4: Simplify right side
    907,643.70x = 512,187,015,866.99
  5. Step 5: Solve for x
    x = 512,187,015,866.99/907,643.70
  6. Step 6: Final answer
    x = 564,304.05

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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.