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Finding the Fourth Proportional to 484,587.48, 668,730.72 and 269,722.92

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Solution

The fourth proportional to 484,587.48, 668,730.72 and 269,722.92 is: 372,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,587.48 : 668,730.72 = 269,722.92 : x
  2. Step 2: Convert to fraction form
    484,587.48/668,730.72 = 269,722.92/x
  3. Step 3: Cross multiply
    484,587.48x = 668,730.72 × 269,722.92
  4. Step 4: Simplify right side
    484,587.48x = 180,372,002,492.10
  5. Step 5: Solve for x
    x = 180,372,002,492.10/484,587.48
  6. Step 6: Final answer
    x = 372,217.63

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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.