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Finding the Fourth Proportional to 610,687.63, 842,762.46 and 338,746.69

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Solution

The fourth proportional to 610,687.63, 842,762.46 and 338,746.69 is: 467,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,687.63 : 842,762.46 = 338,746.69 : x
  2. Step 2: Convert to fraction form
    610,687.63/842,762.46 = 338,746.69/x
  3. Step 3: Cross multiply
    610,687.63x = 842,762.46 × 338,746.69
  4. Step 4: Simplify right side
    610,687.63x = 285,482,993,781.26
  5. Step 5: Solve for x
    x = 285,482,993,781.26/610,687.63
  6. Step 6: Final answer
    x = 467,477.94

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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.