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Finding the Fourth Proportional to 484,527.12, 668,075.24 and 331,639.12

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Solution

The fourth proportional to 484,527.12, 668,075.24 and 331,639.12 is: 457,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,527.12 : 668,075.24 = 331,639.12 : x
  2. Step 2: Convert to fraction form
    484,527.12/668,075.24 = 331,639.12/x
  3. Step 3: Cross multiply
    484,527.12x = 668,075.24 × 331,639.12
  4. Step 4: Simplify right side
    484,527.12x = 221,559,884,687.39
  5. Step 5: Solve for x
    x = 221,559,884,687.39/484,527.12
  6. Step 6: Final answer
    x = 457,270.35

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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.