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Finding the Fourth Proportional to 262,655,999.60, 393,983,999.40 and 176,659,660.40

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Solution

The fourth proportional to 262,655,999.60, 393,983,999.40 and 176,659,660.40 is: 264,989,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,655,999.60 : 393,983,999.40 = 176,659,660.40 : x
  2. Step 2: Convert to fraction form
    262,655,999.60/393,983,999.40 = 176,659,660.40/x
  3. Step 3: Cross multiply
    262,655,999.60x = 393,983,999.40 × 176,659,660.40
  4. Step 4: Simplify right side
    262,655,999.60x = 69,601,079,537,037,800
  5. Step 5: Solve for x
    x = 69,601,079,537,037,800/262,655,999.60
  6. Step 6: Final answer
    x = 264,989,490.60

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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.