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Finding the Fourth Proportional to 366,886.31, 505,617.53 and 286,186.01

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Solution

The fourth proportional to 366,886.31, 505,617.53 and 286,186.01 is: 394,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,886.31 : 505,617.53 = 286,186.01 : x
  2. Step 2: Convert to fraction form
    366,886.31/505,617.53 = 286,186.01/x
  3. Step 3: Cross multiply
    366,886.31x = 505,617.53 × 286,186.01
  4. Step 4: Simplify right side
    366,886.31x = 144,700,659,537.74
  5. Step 5: Solve for x
    x = 144,700,659,537.74/366,886.31
  6. Step 6: Final answer
    x = 394,401.91

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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.