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Finding the Fourth Proportional to 355,261.58, 490,261.11 and 191,918.16

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Solution

The fourth proportional to 355,261.58, 490,261.11 and 191,918.16 is: 264,847.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,261.58 : 490,261.11 = 191,918.16 : x
  2. Step 2: Convert to fraction form
    355,261.58/490,261.11 = 191,918.16/x
  3. Step 3: Cross multiply
    355,261.58x = 490,261.11 × 191,918.16
  4. Step 4: Simplify right side
    355,261.58x = 94,090,009,431.06
  5. Step 5: Solve for x
    x = 94,090,009,431.06/355,261.58
  6. Step 6: Final answer
    x = 264,847.13

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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.