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Finding the Fourth Proportional to 393,554.92, 543,281.70 and 266,616.04

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Solution

The fourth proportional to 393,554.92, 543,281.70 and 266,616.04 is: 368,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,554.92 : 543,281.70 = 266,616.04 : x
  2. Step 2: Convert to fraction form
    393,554.92/543,281.70 = 266,616.04/x
  3. Step 3: Cross multiply
    393,554.92x = 543,281.70 × 266,616.04
  4. Step 4: Simplify right side
    393,554.92x = 144,847,615,458.47
  5. Step 5: Solve for x
    x = 144,847,615,458.47/393,554.92
  6. Step 6: Final answer
    x = 368,049.31

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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.