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Finding the Fourth Proportional to 571,801.79, 857,705.61 and 192,725.79

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Solution

The fourth proportional to 571,801.79, 857,705.61 and 192,725.79 is: 289,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,801.79 : 857,705.61 = 192,725.79 : x
  2. Step 2: Convert to fraction form
    571,801.79/857,705.61 = 192,725.79/x
  3. Step 3: Cross multiply
    571,801.79x = 857,705.61 × 192,725.79
  4. Step 4: Simplify right side
    571,801.79x = 165,301,991,274.68
  5. Step 5: Solve for x
    x = 165,301,991,274.68/571,801.79
  6. Step 6: Final answer
    x = 289,089.67

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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.