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Finding the Fourth Proportional to 262,065.20, 393,097.80 and 162,856.40

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Solution

The fourth proportional to 262,065.20, 393,097.80 and 162,856.40 is: 244,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,065.20 : 393,097.80 = 162,856.40 : x
  2. Step 2: Convert to fraction form
    262,065.20/393,097.80 = 162,856.40/x
  3. Step 3: Cross multiply
    262,065.20x = 393,097.80 × 162,856.40
  4. Step 4: Simplify right side
    262,065.20x = 64,018,492,555.92
  5. Step 5: Solve for x
    x = 64,018,492,555.92/262,065.20
  6. Step 6: Final answer
    x = 244,284.60

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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.