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Finding the Fourth Proportional to 273,812.20, 410,276.70 and 155,130.60

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Solution

The fourth proportional to 273,812.20, 410,276.70 and 155,130.60 is: 232,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,812.20 : 410,276.70 = 155,130.60 : x
  2. Step 2: Convert to fraction form
    273,812.20/410,276.70 = 155,130.60/x
  3. Step 3: Cross multiply
    273,812.20x = 410,276.70 × 155,130.60
  4. Step 4: Simplify right side
    273,812.20x = 63,646,470,637.02
  5. Step 5: Solve for x
    x = 63,646,470,637.02/273,812.20
  6. Step 6: Final answer
    x = 232,445.71

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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.