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Finding the Fourth Proportional to 281,151.61, 387,844.40 and 190,476.77

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Solution

The fourth proportional to 281,151.61, 387,844.40 and 190,476.77 is: 262,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,151.61 : 387,844.40 = 190,476.77 : x
  2. Step 2: Convert to fraction form
    281,151.61/387,844.40 = 190,476.77/x
  3. Step 3: Cross multiply
    281,151.61x = 387,844.40 × 190,476.77
  4. Step 4: Simplify right side
    281,151.61x = 73,875,347,111.56
  5. Step 5: Solve for x
    x = 73,875,347,111.56/281,151.61
  6. Step 6: Final answer
    x = 262,759.82

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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.