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Finding the Fourth Proportional to 635,585.90, 877,114.87 and 345,203.13

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Solution

The fourth proportional to 635,585.90, 877,114.87 and 345,203.13 is: 476,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,585.90 : 877,114.87 = 345,203.13 : x
  2. Step 2: Convert to fraction form
    635,585.90/877,114.87 = 345,203.13/x
  3. Step 3: Cross multiply
    635,585.90x = 877,114.87 × 345,203.13
  4. Step 4: Simplify right side
    635,585.90x = 302,782,796,767.53
  5. Step 5: Solve for x
    x = 302,782,796,767.53/635,585.90
  6. Step 6: Final answer
    x = 476,383.76

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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.