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Finding the Fourth Proportional to 261,406.80, 392,110.20 and 232,866.45

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Solution

The fourth proportional to 261,406.80, 392,110.20 and 232,866.45 is: 349,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,406.80 : 392,110.20 = 232,866.45 : x
  2. Step 2: Convert to fraction form
    261,406.80/392,110.20 = 232,866.45/x
  3. Step 3: Cross multiply
    261,406.80x = 392,110.20 × 232,866.45
  4. Step 4: Simplify right side
    261,406.80x = 91,309,310,282.79
  5. Step 5: Solve for x
    x = 91,309,310,282.79/261,406.80
  6. Step 6: Final answer
    x = 349,299.68

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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.