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Finding the Fourth Proportional to 486,782.87, 671,244.37 and 334,043.80

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Solution

The fourth proportional to 486,782.87, 671,244.37 and 334,043.80 is: 460,626.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,782.87 : 671,244.37 = 334,043.80 : x
  2. Step 2: Convert to fraction form
    486,782.87/671,244.37 = 334,043.80/x
  3. Step 3: Cross multiply
    486,782.87x = 671,244.37 × 334,043.80
  4. Step 4: Simplify right side
    486,782.87x = 224,225,017,570.19
  5. Step 5: Solve for x
    x = 224,225,017,570.19/486,782.87
  6. Step 6: Final answer
    x = 460,626.36

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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.