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Finding the Fourth Proportional to 461,940.40, 692,392.20 and 262,356.40

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Solution

The fourth proportional to 461,940.40, 692,392.20 and 262,356.40 is: 393,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,940.40 : 692,392.20 = 262,356.40 : x
  2. Step 2: Convert to fraction form
    461,940.40/692,392.20 = 262,356.40/x
  3. Step 3: Cross multiply
    461,940.40x = 692,392.20 × 262,356.40
  4. Step 4: Simplify right side
    461,940.40x = 181,653,524,980.08
  5. Step 5: Solve for x
    x = 181,653,524,980.08/461,940.40
  6. Step 6: Final answer
    x = 393,240.18

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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.