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Finding the Fourth Proportional to 484,937.97, 669,235.14 and 270,078

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Solution

The fourth proportional to 484,937.97, 669,235.14 and 270,078 is: 372,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,937.97 : 669,235.14 = 270,078 : x
  2. Step 2: Convert to fraction form
    484,937.97/669,235.14 = 270,078/x
  3. Step 3: Cross multiply
    484,937.97x = 669,235.14 × 270,078
  4. Step 4: Simplify right side
    484,937.97x = 180,745,688,140.92
  5. Step 5: Solve for x
    x = 180,745,688,140.92/484,937.97
  6. Step 6: Final answer
    x = 372,719.19

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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.