Home / 281,006.04-387,333.12-219,645.36

Finding the Fourth Proportional to 281,006.04, 387,333.12 and 219,645.36

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Solution

The fourth proportional to 281,006.04, 387,333.12 and 219,645.36 is: 302,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,006.04 : 387,333.12 = 219,645.36 : x
  2. Step 2: Convert to fraction form
    281,006.04/387,333.12 = 219,645.36/x
  3. Step 3: Cross multiply
    281,006.04x = 387,333.12 × 219,645.36
  4. Step 4: Simplify right side
    281,006.04x = 85,075,922,582.32
  5. Step 5: Solve for x
    x = 85,075,922,582.32/281,006.04
  6. Step 6: Final answer
    x = 302,754.78

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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.