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Finding the Fourth Proportional to 259,323.40, 388,985.10 and 62,331.40

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Solution

The fourth proportional to 259,323.40, 388,985.10 and 62,331.40 is: 93,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,323.40 : 388,985.10 = 62,331.40 : x
  2. Step 2: Convert to fraction form
    259,323.40/388,985.10 = 62,331.40/x
  3. Step 3: Cross multiply
    259,323.40x = 388,985.10 × 62,331.40
  4. Step 4: Simplify right side
    259,323.40x = 24,245,985,862.14
  5. Step 5: Solve for x
    x = 24,245,985,862.14/259,323.40
  6. Step 6: Final answer
    x = 93,497.10

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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.