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Finding the Fourth Proportional to 482,746.80, 724,811.40 and 272,794.80

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Solution

The fourth proportional to 482,746.80, 724,811.40 and 272,794.80 is: 409,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,746.80 : 724,811.40 = 272,794.80 : x
  2. Step 2: Convert to fraction form
    482,746.80/724,811.40 = 272,794.80/x
  3. Step 3: Cross multiply
    482,746.80x = 724,811.40 × 272,794.80
  4. Step 4: Simplify right side
    482,746.80x = 197,724,780,900.72
  5. Step 5: Solve for x
    x = 197,724,780,900.72/482,746.80
  6. Step 6: Final answer
    x = 409,582.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.