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Finding the Fourth Proportional to 262,497.40, 393,746.10 and 162,332.80

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Solution

The fourth proportional to 262,497.40, 393,746.10 and 162,332.80 is: 243,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,497.40 : 393,746.10 = 162,332.80 : x
  2. Step 2: Convert to fraction form
    262,497.40/393,746.10 = 162,332.80/x
  3. Step 3: Cross multiply
    262,497.40x = 393,746.10 × 162,332.80
  4. Step 4: Simplify right side
    262,497.40x = 63,917,906,902.08
  5. Step 5: Solve for x
    x = 63,917,906,902.08/262,497.40
  6. Step 6: Final answer
    x = 243,499.20

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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.