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Finding the Fourth Proportional to 572,447.40, 859,097.70 and 218,153.40

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Solution

The fourth proportional to 572,447.40, 859,097.70 and 218,153.40 is: 327,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,447.40 : 859,097.70 = 218,153.40 : x
  2. Step 2: Convert to fraction form
    572,447.40/859,097.70 = 218,153.40/x
  3. Step 3: Cross multiply
    572,447.40x = 859,097.70 × 218,153.40
  4. Step 4: Simplify right side
    572,447.40x = 187,415,084,187.18
  5. Step 5: Solve for x
    x = 187,415,084,187.18/572,447.40
  6. Step 6: Final answer
    x = 327,392.67

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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.