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Finding the Fourth Proportional to 346,550.63, 478,241.31 and 187,574.63

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Solution

The fourth proportional to 346,550.63, 478,241.31 and 187,574.63 is: 258,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,550.63 : 478,241.31 = 187,574.63 : x
  2. Step 2: Convert to fraction form
    346,550.63/478,241.31 = 187,574.63/x
  3. Step 3: Cross multiply
    346,550.63x = 478,241.31 × 187,574.63
  4. Step 4: Simplify right side
    346,550.63x = 89,705,936,773.97
  5. Step 5: Solve for x
    x = 89,705,936,773.97/346,550.63
  6. Step 6: Final answer
    x = 258,853.77

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1.5x scale

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.