Home / 692,572.80-1,038,859.20-219,295.20

Finding the Fourth Proportional to 692,572.80, 1,038,859.20 and 219,295.20

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Solution

The fourth proportional to 692,572.80, 1,038,859.20 and 219,295.20 is: 328,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,572.80 : 1,038,859.20 = 219,295.20 : x
  2. Step 2: Convert to fraction form
    692,572.80/1,038,859.20 = 219,295.20/x
  3. Step 3: Cross multiply
    692,572.80x = 1,038,859.20 × 219,295.20
  4. Step 4: Simplify right side
    692,572.80x = 227,816,836,035.84
  5. Step 5: Solve for x
    x = 227,816,836,035.84/692,572.80
  6. Step 6: Final answer
    x = 328,942.80

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Double scale
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Similar ratio
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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.