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Finding the Fourth Proportional to 866,843.10, 1,300,240.35 and 393,527.70

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Solution

The fourth proportional to 866,843.10, 1,300,240.35 and 393,527.70 is: 590,280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,843.10 : 1,300,240.35 = 393,527.70 : x
  2. Step 2: Convert to fraction form
    866,843.10/1,300,240.35 = 393,527.70/x
  3. Step 3: Cross multiply
    866,843.10x = 1,300,240.35 × 393,527.70
  4. Step 4: Simplify right side
    866,843.10x = 511,680,594,382.70
  5. Step 5: Solve for x
    x = 511,680,594,382.70/866,843.10
  6. Step 6: Final answer
    x = 590,280.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.