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Finding the Fourth Proportional to 648,866.72, 973,299.87 and 472,496.11

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Solution

The fourth proportional to 648,866.72, 973,299.87 and 472,496.11 is: 708,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,866.72 : 973,299.87 = 472,496.11 : x
  2. Step 2: Convert to fraction form
    648,866.72/973,299.87 = 472,496.11/x
  3. Step 3: Cross multiply
    648,866.72x = 973,299.87 × 472,496.11
  4. Step 4: Simplify right side
    648,866.72x = 459,880,400,005.26
  5. Step 5: Solve for x
    x = 459,880,400,005.26/648,866.72
  6. Step 6: Final answer
    x = 708,744.01

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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.