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Finding the Fourth Proportional to 441,283.68, 608,641.56 and 280,185.84

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Solution

The fourth proportional to 441,283.68, 608,641.56 and 280,185.84 is: 386,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,283.68 : 608,641.56 = 280,185.84 : x
  2. Step 2: Convert to fraction form
    441,283.68/608,641.56 = 280,185.84/x
  3. Step 3: Cross multiply
    441,283.68x = 608,641.56 × 280,185.84
  4. Step 4: Simplify right side
    441,283.68x = 170,532,746,747.51
  5. Step 5: Solve for x
    x = 170,532,746,747.51/441,283.68
  6. Step 6: Final answer
    x = 386,446.98

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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.