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Finding the Fourth Proportional to 402,330.80, 603,496.20 and 165,594.80

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Solution

The fourth proportional to 402,330.80, 603,496.20 and 165,594.80 is: 248,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,330.80 : 603,496.20 = 165,594.80 : x
  2. Step 2: Convert to fraction form
    402,330.80/603,496.20 = 165,594.80/x
  3. Step 3: Cross multiply
    402,330.80x = 603,496.20 × 165,594.80
  4. Step 4: Simplify right side
    402,330.80x = 99,935,832,539.76
  5. Step 5: Solve for x
    x = 99,935,832,539.76/402,330.80
  6. Step 6: Final answer
    x = 248,392.20

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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.