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Finding the Fourth Proportional to 468,209.40, 702,314.10 and 202,488.90

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Solution

The fourth proportional to 468,209.40, 702,314.10 and 202,488.90 is: 303,733.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,209.40 : 702,314.10 = 202,488.90 : x
  2. Step 2: Convert to fraction form
    468,209.40/702,314.10 = 202,488.90/x
  3. Step 3: Cross multiply
    468,209.40x = 702,314.10 × 202,488.90
  4. Step 4: Simplify right side
    468,209.40x = 142,210,809,563.49
  5. Step 5: Solve for x
    x = 142,210,809,563.49/468,209.40
  6. Step 6: Final answer
    x = 303,733.35

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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.