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Finding the Fourth Proportional to 402,220.40, 601,775.40 and 262,252.40

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Solution

The fourth proportional to 402,220.40, 601,775.40 and 262,252.40 is: 392,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,220.40 : 601,775.40 = 262,252.40 : x
  2. Step 2: Convert to fraction form
    402,220.40/601,775.40 = 262,252.40/x
  3. Step 3: Cross multiply
    402,220.40x = 601,775.40 × 262,252.40
  4. Step 4: Simplify right side
    402,220.40x = 157,817,042,910.96
  5. Step 5: Solve for x
    x = 157,817,042,910.96/402,220.40
  6. Step 6: Final answer
    x = 392,364.59

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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.