Home / 863,141.80-1,294,712.70-223,444.30

Finding the Fourth Proportional to 863,141.80, 1,294,712.70 and 223,444.30

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Solution

The fourth proportional to 863,141.80, 1,294,712.70 and 223,444.30 is: 335,166.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,141.80 : 1,294,712.70 = 223,444.30 : x
  2. Step 2: Convert to fraction form
    863,141.80/1,294,712.70 = 223,444.30/x
  3. Step 3: Cross multiply
    863,141.80x = 1,294,712.70 × 223,444.30
  4. Step 4: Simplify right side
    863,141.80x = 289,296,172,952.61
  5. Step 5: Solve for x
    x = 289,296,172,952.61/863,141.80
  6. Step 6: Final answer
    x = 335,166.45

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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.