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Finding the Fourth Proportional to 282,052.59, 389,239.11 and 154,728.18

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Solution

The fourth proportional to 282,052.59, 389,239.11 and 154,728.18 is: 213,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,052.59 : 389,239.11 = 154,728.18 : x
  2. Step 2: Convert to fraction form
    282,052.59/389,239.11 = 154,728.18/x
  3. Step 3: Cross multiply
    282,052.59x = 389,239.11 × 154,728.18
  4. Step 4: Simplify right side
    282,052.59x = 60,226,259,075.12
  5. Step 5: Solve for x
    x = 60,226,259,075.12/282,052.59
  6. Step 6: Final answer
    x = 213,528.47

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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.